I used to row an old Achilles inflatable
a lot and the two most important factors to row reasonably well in my experience, acknowledging there is no comparison to rowing a hard dingy of course (but pretty reasonable, especially with benefits of storeability and stability for diving
Sitting on a big fender
with good footblocks ergonomically optimal for your body/leg length rowing was using much more of you full body than possible with a standard seat. In the case of my ~12' dingy the Polyform A-4 buoy/fender (20.5"-27" size) and a couple blocks epoxied onto the wooden board floor it worked well. Rowing against 25-30 knots of wind
was a bit of work
but very doable.. I would assume using pvc/hypalon glue on an airfloor or splashzone on an aluminum
to secure footblocks would be as effective...
Using real oars in real oar locks, as opposed to the rinky dink "oars" sold with current
inflatables. The old Achilles actually had wooden blocks that were hypalon glued down with additional hypalon securing them to the tubes so you could actually use nice long traditional wooden oars.. Something along the lines of Sea-Dog Oar Top Mount Lock Sockets mounted into blocks of epoxy
soaked wood which is then glued onto the dingy tubes in an ergonomic position with proper surface prep and distribution of load across a modest area and extra pvc/hypalon as appropriate to reinforce would help a lot...
Not exactly the question you asked, but may prove helpful for you :-)