Hi Eric,
I just spent some time going through my cook kits to organize them. I have too many, but maybe my experience will help you out. I think it’s the combination of pot and stove and windscreen that make a kit good or not. You didn’t mention if you already have the stove and windscreen. If not, that a whole ‘nother discussion.
I spent a long time trying build a complete set, including a hot drink cup for me and for my son. I couldn’t find anything I was happy with, and now he carries his own mess kit. Besides, since he joined the boy scouts, that’s the way they do it anyway. If he and I are out on our own he uses the same kit, which happens to be those GSI collapsible bowl and mug with a spork. If he wants a hot cocoa he doesn’t care if it cools off fast. I will say for mugs, we had older GSI infinity mugs which were lighter than snow peak double walled mugs and pretty close to the olicamp space saver in price and weight. They won’t nest around a nalgene, but they keep hot drinks hot a lot longer than a simple aluminum mug. It will fit a SmartWater bottle with room to spare, or you can strap them to the outside of your pack.
As for pots, I have the Olicamp XTS, but replaced the lid with a Four Dog Stoves Ti lid after the plastic lid started to melt on my test run. It’s a good pot and not too heavy or expensive – I hear they work great with a Biolite stove. After checking out Four Dog, I ended up getting the 1.8L MORS and later the 1.1L Bushpot. If you haven’t seen the Four Dog videos on Potology it’s worth a look. The 1.1L Bushpot is lighter than the XTS with a better lid, and you can get it with a bail if you don’t want to nest it in the 1.8L pot.
Some will go smaller for two people, but you said you wanted hot beverages with your rehydrated meals so these pots are both worth looking at. Other aluminum options I like are the popular Imusa 12cm mug and the Batchstovez 12cm pot (I don’t have this one).
If you can live with less volume or want a dedicated solo kit, I like Ti pots like the Toaks Light 650. With a DIY cozy, carbon lid, mesh stuff sac and flat cat snow leopard windscreen/alcohol stove it’s only 5.0 oz. That’s a complete and very capable kit for less weight than most pots. Others drop down to 450 ml to save more grams, but like you I’m looking for water for cooking and a drink when I fire up the stove. This will cost you more than the aluminum pots above.
Over a $100 there are even more awesome options. The MSR Windburner is an exceptional canister stove (though not light), and Trail Designs has the best alcohol/esbit/wood combination with their Tri-Ti Caldera Cones.