Q1.
Can I use use a Tamiya M4 small hatch early hull (kit 35190) combined with an M4A2 engine deck from Italeri’s Marine Sherman ?
Q2.
I know I’ll have to change the angle of the rear end plate on the hull top and create new end plates for upper & lower hulls, I have a Tank Workshops late hull M4A2 conversion kit, can I copy that for the exhaust system & rear plates ?
Q3.
The rear end of the turret splash ring is a slightly different profile but I can recreate this from plasticard. Is there anything else glaringly obvious that I’m missing ?
Q4.
Which suspension is most likely, return roller on top, horizontal or upswept trailing arm.
I also know that Formations make a conversion kit but I have the Tamiya & Italeri kits in the stash ready to go and Rob's kit is designed to be used with the Academy kits
So what do you think or am I barking up the wrong tree or just plain barking so to speak

Appreciate your comments.
Happy modelling
Ant