Daniel Kalvar

I have purchased orange 97 that went up pikes peak international hill climb in 2004-5 and took 1st in its class . Car originally had AAN with 4000 transmission and not sure what rear end . Anyhow car got stripped down to its cage . So parted A4 came by and I purchased hood , bumpers , doors , suspension front and back . I had stripped a URS6 long time ago and have motor tranny and rear diff that's locking and I want to use it and grandfather it back in to racing and hill climb . Now it's time to fabricate up rear differential from URS6 to B5 !?
Front subframe has been modified to fit AAN same with tranny mounts but I don't know how to make engine mounts work ? Do I use mounts from URS6 that bolts through the frame or some kind of brackets that go on the front sway bar attachments to the body ?