740 turbo '92-oil seals issues

Changed front cam, crankshaft and intermediate oil seals as well as
timing cover gasket (of which there was no residue from the old one!).
Fired it up, it started on 2nd try and ran good (except for the oil
leaking from the bottom of the new timing belt cover!). Took it all
apart, assuming that gasket failed (as I realized I had not allowed
much time for the gasket sealant to dry properly), to find that the
plate between the crankshaft pulley and the crankshaft sprocket had
slipped (during reassembly perhaps?). This caused the tab on the
sprocket to indent and distort said plate, as well as somewhat
distorting the tab itself. Also, some oil had collected under where
crankshaft & intermediate seals are. Question #1: Did I do something
wrong when I installed the two lower seals (do they need to be pushed
in further?). Question #2: Is there any way I should even consider
trying to use the abovementioned parts, or do I have to get new pulley/
plate/etc. (and-if so-what did I do to mess them up?)? Thanks for your
time.
--Matt E.