You absolutely do not want to try to make 'fruit leather' or dehydrate pawpaw pulp! You'll be spending a day or two afraid to move more than a few feet away from the toilet.
15 yrs or so ago, I made some pawpaw cookies - using a recipe from the KSU Pawpaw website, even - and took them to work. Everyone that ate one (or more) got sick. My boss spent 3 days at home... thought he was gonna have to go in the hospital for IV fluids. I've still not lived that down.
Most of the small pawpaw plants you find out and about are suckers with little to no root system of their own... transplanting them is a very low success rate proposition. As the sole surviving temperate-climate genus in a family of tropical plants, they are very much unlike most of the deciduous tree species we deal with (oaks, hickories, apples, persimmons, etc. ) They do NO root growth during their dormant season... so transplanting suckers or even bareroot seedlings needs to be done just as they're breaking dormancy in spring, or in late summer just as they're starting to wind down. For that reason, most nurseries handling them are doing them as containerized seedlings from the outset; if they're offering bareroot pawpaws, I'd steer clear of them.
The NY nurseryman, John H. Gordon, told me, back in the early '90s, that if he was 30 yrs younger, instead of planting out grafted pawpaws, he'd just select largest-leaved seedlings of good named varieties and outplant them. One thing that many of us have experienced with grafted pawpaws is that it's pretty common, a few years down the road, for the grafts to decline and you end up with whatever seedling rootstock you started out with. A high percentage of seedlings tend to produce fruit very similar in size/quality to that of the 'mother' tree, so a named-parentage seedling has a way better than average chance of producing quality fruits.
I never knew what a pawpaw was until I was well into my 30s... but once somebody identified one for me... I realized I'd been seeing them all my life...all along the creeks there in AL where I grew up... just never saw any with fruits. Even when we'd go back to AL to visit family, and I was actively looking - I never found A.triloba with fruit hanging. But... the dwarf/small-flowered pawpaw, A.parviflora, was also common on our farm... usually on droughty upland sites... and they would be covered with their little thumb-sized fruits, festooned all along the branches.