Sorry to hear about your neck injuries, take care of yourself with that!

I sympathyze with a serious lower back injury and a couple of surgeries with permanent damage.

When at the range in California a few years back I shot a 12 ga with some sort of hydraulic recoil system.

The stock had a wooden overboot with a recoil pad and internal pistons fitted to the shortened original rear stock.

I will say I barely felt the recoil from a 3" shell with #7 shot.

Quite the eye opener!

There is another system that is less costly that uses a volume of murcury in a capsule fitted to the gun's forend.

As the gun recoils, the murcury is slammed into the front end of the capsule, essentially pulling the gun away from you lessening the recoil.

For every action, there is an equal and opposite reaction.

Simple and elegant!

Good luck on those turkeys and all those nice fly tying feathers, lol