Vettehead Mikey

Hello mike if your there, thank you for your input. but what areas should I be concerned with on the frame and what is the birdcage? I dont see any rust but then its fiberglass so the normal areas I would check dont count. Now that you explained matching #s to me theres no way its all matching. Im not looking to make a ton of money but if I buy for 10 and put 10 in the paint and getting the wiring harness replaced I would like it to be worth 30-35 if thats reasonable. I noticed on nada that in option there was a 454 and ls5, I thought ls5 was a vette with a stock 454? I have a ton of questions and Ill have aton more if I buy.