They are ok with allowing a 60-day DD period to evaluate the real estate itself (given that environmental inspections and whatnot will likely take that long).  

Complete renovation working within the existing footprint.

You can use the EPA website and punch in the address to see if there are any known environmental issues.

Plus arch fee of 8k to custom design the home we had tight environmental set backs ..

I think moneygram boasts around 40,000 locations in usa.Im sure paylease is similar in footprint.

I'm, maybe naively, trying to avoid a large footprint to keep everything close hold and give someone an opportunity to work.Do you have any additional thoughts?

Once you have become an expert in that market, then think about adding an additional market to your footprint.

In a high-end market and environmentally conscious area I think it is a great idea, and will sell the house faster. as @Aaron Montague suggested, try talking to some solar installers.

C --- 2,823         --- $1,550  <--- I can't imagine they increased their footprint by 10x and only got a $1,500 rent increase!

I would consider asking the seller to remove the tank and get a "no further action" certificate from the State Environmental office (that's what it's called here in NC - not sure if it is the same in NJ but pretty certain there is an equivalent.