hmm, it would seem to me that the problem of load capacity with the rear suspension was greater as it will keep you from using your car if you cant register it... so look into selling the C4 stuff and installing either a jag or a link mount solid rear...
with regards to a front suspension you could install a mustang 2, or TCI custom front end... i have a TCI on my 32, works great but it has the turning radius of a steamboat... i also just happen have a mustang 2 laying arround
lol
but the c4 stuff works great, except it is designed to work in a car with a lower center of gravity so you propably need more roll bar, and you still might have a load problem
what mopar are we talking about BTW???