tools ? Skills ?
What can you do yourself, do you have a welder, grinder, torch. a lot of time. Someone asked a couple days ago about a 36 olds. My son has one apart, a project he bought. We have looked at putting in a Jag XJ6 front and rear. We can get jags $ 100-125.. We pull. There is a lot of info on the HAMB abount doing Jag swaps. the 57 buick is very similar frame to ours-yours. search jaguar suspension swap. lots of info on the Web. with a jag you keep your frame, cut off the spring pockets, add flat plate and install the jag cross members.