I can't say what the PA inspectors wan,t but being a remodel, I would tie into an existing 2" or larger vent at least 42" above the floor(upstairs). Sometimes it's easy to take the vent up through a closet corner and make a tie in in the attic rather then patching walls.
If this was new work, I'd have to vent the pump separate through the roof- no other connections. PA may want this on remodels too. So it may be wise to pay a local plumber for his consultation time. Oh, and how do you propose to vent the new fixtures? Are auto vents legal there?
I called the local code enforcement officer. To my surprise he said that there are no required inspections for finishing the basement and adding a half bath unless I was making a change to supporting structure or foundation. He also said that the local code is International Building Code. I THOUGHT he said IBC 2006. Does this make sense?