I might have to agree with Jeff about those Precision Metal Craft intake manifolds. They're pricey but really nice. And on a side note, let me just say, Jeff, I like your style when it comes to engine bays!
I also had to powder coat my brake calipers gray which ended up running around $800, after having to buy new pistons and seals for them.
Craziest thing I had to have though, I and I don't have any finished pictures would be these:
Matt