Barn find 1931 SW 160-B

[burner31]

I've seen pro and con about dropping the oil pan, pro is...cleans out the mud...con is ...oil pump falls out and is a pain to get back in and pan leaks.
I have the pan gasket, I was thinking fresh oil, run it 20 -30 hours drain/fill and repeat. Do this several times.
Seeking Advice...should I drop the pan and fight the oil pump and the leaks?

Waiting until after Christmas to really get into it, been doing small things, cleaning and fixing small items, ordering parts, but the real fun starts after the new year. Picked up the car Dec. 3rd, 2014