i'm glad you're not giving up man. i know what all you've been through and i know it's testing, but it's good that you're not throwing in the towel... it takes a lot out of you i know.
post up this same thread in the calssifieds under nissan parts... just put wtb in the thread title. i have a ssac top mount manifold that has lasted my so far with no problems... i know you're going to go with something with a better reputation, just wanted to throw that in there just in case the money issue is a really big thing right now. i'm not selling mine but they can be had for cheap as you are aware of.
if i were to get a different manifold, which will undoubtedly happen when i decide to get a bigger turbo and go for 300+ whp, i will definitely be looking at AIP's stuff.. they give a very considerable discount to nico members, so you may want to look at their stuff too...
zerothread?id=119969
there's the thread with pricing.
$449 for a top mount equal length good quality manifold... hard to find anything that compares to that for what it is. you may find cast manifolds for cheaper (my brother sold his rev hard mani to someone for $300 or something like that... maybe $350, but it just doesn't compare. i understand the money thihng though, so i mean $449 my just be out of the question at this point. good luck with whatever you decide to do. as always ask questions if you have any.