Re: Alpha resivior
We can do 'most' anything, with the time, tools, and a wheelbarrow full of cash.
The transom assembly can be retrofitted, requires drilling and tapping holes.
If your upper gear housing does not have the valve assy it would also need retrofitting, more drilling and tapping, plus and upper gearcase seal kit.
I am not aware of any 'Kit', so it could be a chore to look up and order every little thing needed.