I went with a Mustang II IFS in my '61 and it's the best thing I've done by far. I went with Rod & Custom Motorsports' kit. Check them out at
www.rcmotorsports.com
Willie and William (father and son) are very easy to talk with and didn't mind me asking a zillion questions and making all sorts of calls before I bit the bullet and bought it. (Mind you, it's a big cost.) I didn't want to find a Mustang II front end, because they are very, very tough to find in my part of the world, Los Angeles.