Looking good Ben! You're giving the old girl the attention she deserves. In looking over this, while building your drip pan, another thing you might consider is setting up your bilge and bilge pump similar to Capt. Ebb's. Lot's of good ideas and educational reading in his thread!
It's somewhere in his thread here: http://www.pearsonariel.org/discussi...GALLERY-THREAD
But once the engine is in, access to that bilge is difficult, unless you have the arms of an orangutan, which I don't thing you do.