The ebay dude just got back to me. hes been really helpful.

He says: ( when i told him ihave drive by wire K24a)

"In that case, you won't need the throttle body adapter, you won't need the modification for going onto a K20 head, you won't need the extra Gasket between the adapter and the throttle cable throttle body, you won't need the replacement vacuum line since you already have the correct one, and you won't need the hardware to bolt the adapter on. Looks like all you need is:

RBC manifold unmodified
Extra Gasket between your throttlebody and manifold incase yours rips when removing

I can do $200 plus shipping for what you need.

Shipping will be a bit less with the lower weight:
$73 for 6-10 day Priority Mail International
and
$88 for 5 day Express Mail International "

Does that sound alrgith to you? Thats about $300 or so landed. And I just need to then do the nipple mod yeah?

Not worth porting if i dont have the Bigger throttle body yet you reckon????

Might take you up on that offer justin! Cheers mate