You might want to check out this link:
http://www.novak-adapt.com/catalog/e...ts/mmx-nb1.htm
They deal mostly with Jeep conversions. There are five different models their conversion motor mounts fit, you can check out the various offerings by using the drop down menu on the left. If you're interested, give them a call as they are very helpful. I installed one of their clutch slave cylinder kits in my 60 GMC about 5-6 years ago and it works perfectly.