Exhaust manifold bolts/hardware?

I found some manifolds to use on my '68 Barracuda w/318. (thanks again @dart_man440!) Driver is a '73 B/C/E body manifold (3751084B) and the passenger is a '68 318 manifold (2465769).

Now I need hardware to mount it to the engine. Anyone know of a reasonable kit (those conical washers are ridiculous $$$!) that can be purchased that will work on both? Can I use ordinary grade 8 bolts and regular washers instead? How about the exhaust outlet gaskets to fit each one? Sorry, been a long time since I have dealt with exhaust manifolds!

Oh, anyone see that '73 manifold being an issue on an A body?

Kelly, I left you a message, I might have the washers. Give me a call,
Rob.