Yeah.. I am looking for a good 215 flywheel for almost an year now....found some but they were trashed...
The 228 flywheel in t1 trans is a little risky but it can be done.
But it requires the use of a self supporting starter.(from auto trans)
check out
http://www.tunacan.net/t4/
Tom has some very good info about type4 conversion(flywheel included).
Eveyone recomands the use of a 210 or a 215mm flywheel for the t1 trans.
Martin