Hussey also makes a copper headgasket for it...adjustable cam gears, I've heard that a supra intake gear can be used, buit not hte exhaust as the FE3 exhaust gear is just the intake one turned upside down, but with a little imagination (and a drill bit) this can be fixed. I have not personally confirmed this, but I plan on it soon...found a pair on ebay for like 100 bucks...as for your little comment on the BMW springs being pricey b/c inner and outer and being BMW, it's solely BMW. If you go to the kia dealership you will find that they are sold the same wasy, and for the pair it's cheaper than just the outer of the VW even...but teh BMW ones would probably be the best
Also, you mention about only being 2 different cam profiles, I think that may be wrong. I'm pretty sure I have witnessed at least 3 different setups, maybe 4. I know mine seems to be special, first I've seen with a weaker profile on the exhaust side than the intake. A trick I've heard about also for getting a bit more power is use 2 exhaust cams, and flip one upside down on the intake side, but I have not tried it yet...