Sounds like a nice conversion. I'd love to do something like this.
I do have a question: how do you line up the crank center to tranny center? Worded another way, if I were to mate a motor to a different manual transmission, how do I mark the adaptor plate so that the pilot shaft is dead center of the crank? I didn't have this problem with my conversion, as they were mated already. It may seem simple to some, but I'm not sure.

Thanks.

1994 Chev S10 Ext.Cab with C223 5spd
1991 S10 Sonoma Ext.Cab with C223 5spd - SOLD

Kubota B6100 diesel with accessories