If you have jaw pain, popping when opening wide, etc. report that and any other jaw issues to the VA for your compensation. 

The strategies you listed can have a wide range of time input from you depending on how you approach them.The podcasts are a great resource, but dig into the forums if you haven't already.

If you look closely at hospital rooms you will see wide doors, metal door frames, chair rail all around the room, hard surface floors, and rubber cove base for baseboard, .

The problem I have is the driveway to access the parking area in the rear of the house is very narrow ~10feet wide. 

This will vary widely from market to market, depending on Zillow's access to market data. 

The added benefit is I get a good sense from a wide range of properties are available.

I've closed with several others and haven't had widely varying experiences so you should be just fine if you go with somebody besides these two. 

Varies widely by area so I can't say, but since I'm in California and you are in Pennsylvania, your numbers should be higher than mine, potentially much higher.

One reason I don't like it is the values can change from day to day with pretty wide swings. 

I also believe you will get a wide range of advice.