I’m 6’1″ and packraft with the same gear I use in my sea kayak when on shorter trips.
*Werner Camano 230cm
*Kokatat MsFit Tour PFD
*NRS Mariner suit (eVent)
Paddle: It’s harder to translate high-angle paddling to packrafting than kayaking. It’s still a good goal to keep a high paddle angle to minimize the lateral force that tends to turn the boat rather than propel it. With a longer paddle, it’s possible to get the blade in the water farther forward (closer to your feet) which is a more efficient part of the paddling movement than the part of the stroke out to the side and aft (particularly with a horizontal blade). Unfortunately, the tubes of a packraft are so thick that they prevent the paddling stroke from truly being similar to that of a picture-perfect kayak stroke… they simply force you to drop the angle to get around them. I’d maybe go a little longer than 210 to compensate for the lower angle forced by the wider tubes. I remember Roman mentioning shooting for a longer paddle in his book, but I don’t remember the specifics.
Boat size: I’m not sure about the Alpacka stats off the top of my head, but my general thinking would be to go longer if it doesn’t increase the width. I paddle a llama. Sometimes I think it would be nice to have a longer boat, but this is primarily because I do more bikerafting than just packrafting. With the bike and the pack strapped to the front, things can get a little cramped. If you’re planning on paddling class I & II, I wouldn’t worry about trying to go smaller on boat size to increase bracing. I might not worry about it even if you were planning on paddling a little bigger water… but maybe. Because of their flat bottom, packrafts are super easy to turn for navigation in tight areas. I don’t necessarily disagree with what others have said about whitewater paddling, but you mentioned lakes and I/II rivers so I’m filtering everything through that lens.
PFD: I love my Kokatat foam PFD when I’m in the boat. I haven’t had to modify it at all, and the back doesn’t interfere with the seat or paddling stroke. However, it’s inconvenient to pack a foam pfd from just the sheer bulkiness factor. It’s not that big of a deal to just strap it on the outside of my pack on a day trip, but it does seem like it’s always in the way when off trail hiking and/or getting snagged on branches when riding down a tight trail. This is probably a function of trip length where the farther you hike/bike, the more annoying it becomes (exponentially at some point). For this reason, I’m considering switching to one of the inflatables — as long as I can find one that doesn’t interfere too much with paddling. I sometimes paddle with my hydrostatic auto-inflating Mustang Survival PFD when I’m not planning on getting wet. It’s the vest I use for sailing. It’s fairly unobtrusive when uninflated, and much more compact than my Kokatat vest.
Drysuit: This is the most frustrating part about bikerafting/packrafting to me. For some reason, all drysuits seem to be designed for the Stay-Puft marshmallow man. They use tons of extra fabric which makes them even bulkier than they already would be. I’ve worn Kokatat GoreTex suits and they’re perhaps worse than my eVent suit, but I don’t like either option. Perhaps the Reed Chillcheater paddling suits are cut more for normal people… though they’re not technically submersion suits. If you’re paddling I & II water, I’d probably ditch a drysuit and work with the suggestions mentioned by others. I love the Chillcheater fabric in terms of feel, and the suits might be lighter, but it’s probably not tough enough to wear for significant lengths of time out of the boat. I’m frustrated to the point of experimenting with some MYOG stuff in the drysuit category.
Hmm… the tone of this response might be overly critical. Basically, don’t let the decision between foam/inflatable or drysuit/not prevent (or slow you down) from pulling the trigger into packrafting. Safety considerations notwithstanding, it’s a pretty flexible activity… and really fun.
Takeaways: I’ve never felt like I wanted a shorter boat or a shorter paddle… but it’s hard to get those questions wrong.
I’ve always felt like I wanted a lighter/more compact PFD and a lighter/more compact drysuit… There’s just no perfect answer on those questions.