RWD and 86kw FWD flywheel = 200mm
100kw flywheel = 212mm
ZE flywheel = 224mm or rarely 230mm and wont fit into T50 bellhousing
Go 100kw and choose a decent clutch to suit (depending on what you use the car for)
Thickness of the flywheel isn't a consideration. All 4AGE flys are interchangeable.
Hen