Here's a link to back halfing an early Mustang, with a 4-link. Don't expect "modern car" handling with a kit like this.
http://www.cachassisworks.com/Storie...AC-003_WEB.pdf
Same with a strut front end kit:
http://www.cachassisworks.com/Storie...AC-002_WEB.pdf
It can be done, lots of work, I did mine in the garage. It rides and handles like a straight line car though, not the most comfortable. This may not be what you had in mind?