building a head

OK i have a 92 tsi fwd and i am looking for 300-400 hp
tell me if this stuff is any good or direct me to some better parts. my budget is about 2000.
hks 272 cams or Brian crower stage 3 cams
arp studs
revised lifters
topline rocker arms
manley springs with titanium retainers
manley valve locks
ferrea valve stem seals
manganeese-bronze valve guides
ferrea 6000 series valves

Largely unneeded. Go with BC, Comp, or FP cams as they are cheaper than HKS's. Depending on the grind, you may or may not need adjustable cam gears (I would suggets FP2's, compatible with stock springs/retainers, cheapest, and they dont need adjustable cam gearrs). You dont need new valves, guides, rocker arms, or locks unless the old ones are defunct. Same goes for the lifters, I wouldnt waste the money unless they are ticking like mad. The ARP's are good though, as are the new valve seals (not necessarily Ferrea), and the springs/retainers are a pretty good idea as well, though also unneeded.

Largely unneeded. Go with BC, Comp, or FP cams as they are cheaper than HKS's. Depending on the grind, you may or may not need adjustable cam gears (I would suggets FP2's, compatible with stock springs/retainers, cheapest, and they dont need adjustable cam gearrs). You dont need new valves, guides, rocker arms, or locks unless the old ones are defunct. Same goes for the lifters, I wouldnt waste the money unless they are ticking like mad. The ARP's are good though, as are the new valve seals (not necessarily Ferrea), and the springs/retainers are a pretty good idea as well, though also unneeded.

I highly recommend springs/retainers especially with new cams. Need the extra holding power, stockers will wear out quickly. Plus, the retainers are usually light weight, freeing up some power there. It all depends on how much you want to spend though.

How many miles are on the car? If it's any more than 150k, I would say upgrade the head internals as well, that shit is already almost 16 years old.

The motor is being rebuilt right now and i was looking for the stuff for the head. Yes i know it might not be needed but i would like to have as much new stuff as possible.The guides were cracked so i need different ones. Thanks

I highly recommend springs/retainers especially with new cams. Need the extra holding power, stockers will wear out quickly. Plus, the retainers are usually light weight, freeing up some power there. It all depends on how much you want to spend though.
Since retainers arent part of the rotating mass, weight savings will only matter in the overall weight of the car, and whether or not you take a shit before the race will affect it more than that. :p

If you really want all that then that is fine, but whether you need it or not is debatable. I should also note there is some routine maintenance that is much more important than mods, be sure you take care of those first. Things include a valve job, making sure the head is straignt, and a timing belt job.

Retainers are part of the reciprocating mass though, which can be looked at as just a really flat circle. ;)