tabdoo,
I'm in the same boat you are. I have been researching IFS for a while now trying to consider whats the best bang for my buck. I agree with the others, the 73-87 suspension just makes the truck look goofy. I've researched the Pacer bolt in swap too. It seemed like the likely choice since it would bolt in (sort of), but from the people I've talked to its not any cheaper after rebuilding the pacer front end.
I've chosen to go with a FatMan Mustang II. Everything is included. I can get a budy to help with welding and then it will be done. I just have to save up like I would for anything else.
