Newbie needs 94 valve cover leak help

[tautemarite]

HI, I am a newbie 4 runner owner. It is a 94, v-6 but leaks around the plastic valve covers. Where can I find metal ones? Also need 4 hub caps and some way to help out the weak rear end (weight wise).
Chuck
Kirkland, WA

(also have a 72 Ford Bronco)