Might put my headers on today, question

I have the day off today, so I may talk dad into helping me put some headers on the car today. Kinda rainy though (why I got the day off, work at a carwash) so I don't really want to drive it much but I will if I have to heat cycle the bolts. My headers are Mac unequal shorties, and I was probably going to put my new plugs and wires in while the headers are off. It came with some copper gaskets though, are they pos, or decent. I can go pick up soem Felpro 1415s if needed, I assume Advance would have them in stock. It also came with some bolts that I would probably use, would they cause trouble? Would it be worth investing in some better ones and using these as temporary? IIRC header gaskets can be reused right? Thanks!

Still debating on doing them or not. The only concern that was brought up was that if I ring a bolt off on the headers, I doubt I'll be driving until I get that fixed since our Jeep is still down. I could get to school but I couldn't get a ride out of school since I leave earlier than anyone else I know of. Still debating on putting them on or not. If I don't do it tonight I'll probably purchase some locking bolts. The cars sitting in the garage with a fire going ready for her tuneup. We'll see I guess. We will have two people working so it shouldn't be all that bad.