Oil weep in 20v distributor

[dan sinclair]

Well, I think I may have another reason to change out my rattling distributor.

I went to check my cap and rotor this weekend and found a small bit of engine oil at the base of the cap.  It was a small amount, but clearly it shouldn't be there.

Questions:

1. Is a new distributor the right solution?
2. Is a distributor change-out a DIY job, or is it best handled by a pro?  It's a side mounted beast with a fair amount of interference with ABS lines, booster, etc. so any BTDTs appreciated.

Thanks,

Dan Sinclair
1990 CQ