[cobred]

Get any options you think you may want because they will install them at ERA.
This way even if you dissassemble it you can see how it goes first hand. When you get a part from ERA the part fits perfect, is top quality and comes complete with all the hardware.
Get the headers and side pipes and have them jig them up and weld the tabs, its worth it.
Have them powercoat the frame and bond the body, also worth the money.
Think about buying the rear susp. comeplete from them, stock jag. or their custom set-up. I bought a core from ERA and all the parts and rebuilt it myself but I have about $2900 into it.
Its a pretty easy car to build and a great car when its done.