You are not alone there. Considering Vince pretty much had a Carte Blanche with the re-build, it is a surprise that it didn't happen.
That's a proper downside to not being mechanically minded too. A lot of people on here would probably done it, knowing it would restrict things, I always go on what the experts tell me.
It'll teach me to listen to the people on here who know what they are talking about. At least 6 of you said about headers.
Oh well and all that. The only good things is that I am spreading the cost a little bit