Dont understand the problem.
In 5 days I might take 3 poops. Would probably use a total of 3 baby wipes, if I took them at all. Packing them out in a couple of ziplocks is hardly difficult.
If you assume the correct position, there is nothing left to wipe, just like your dog. If it makes you feel better, wipe with natural materials first then finish up with some nice TP. You will use barely any at all.

