Wow, this thread went all wacky quick... Back to the original question:
Ok, IMHO, you should try to make a decision about the use of your car for the future. You need a plan. You say you're gonna eventually do a "full restoration" but what does that mean? Do you intend to do a full custom suspension from TCP, Maier, or GW, or just selectively use certain components in combination with some original type components? This will make a huge difference in whether you should do the Shelby drop now or wait. It can also help you save serious money over time.
Hope this helps...