New z32 afm's, or 2x Q45 afms (search ebay for special $$) $200 for 2x q45's, resolder the internals yourself to make sure all A-OK.
New Cometic / Greddy / Hks head gasket, 1.2, 1.3 or 1.5mm $400
New Nissan gasket set for all other gaskets (manifolds, etc) $300
Greddy poncam camshafts, springs $1300
New EPP stem seals, valve guides, etc $300
Highflow / porting of the head while camshafts / gaskets are being fitted. $2000
bigger dump pipes, custom, search ebay lol, $500
start saving
at the least grab the AFM's and scour around for better Dump pipes, set aside One thousand for total output for the 4 individual items, delivered to your hand,
dont be afraid of ebay usa/jp