Yes, you can reuse the gasket no problem at all, we've done it a few times for one reason or another and never had a gasket failure. I've done it on CVH's with fibre gaskets too, but Zetec MLS gaskets are less sensitive too it.

Perry - crazy huh!

They are specially made springs from Ian Howell, I have a set. It was convenient at the time to get them and they are proven to work. The Kent/Piper uprated springs aren't stiff enough. For over 25psi or so at high rpm, Ian does double valve springs which need custom valve stem seals and possibly some machining to get them to fit too - they are getting on £5-600 i think.

Rick