there is a lot of info if u do a search here and FA. Trust me, i read a lot b4 i went ahead and removed the 2 guides for the upper chain. i can dig up links to those if u want, a lot of good info in em.
these are off my car:
lower guide for the upper chain
upper guide that u said u removed already
u can see the wear in each
(links arent workin, i have these if u care to see, IM me at s13driver39)
heres a good link:
timing chain guides
there are few more i could dig up, plus ive already removed my lower guide for the upper chain and have had no problems and can help out with that.