However, I have a bunch of buyers interested in it, and they have not been granting me access.

Does that include MLS access cost?

Since there is no basement, I imagine the repair involves cutting through and replacing parts of the floor to be able to access the cracked part, but I don't have any experience with this type of foundation work.  

Very much a"block to block" city, with respect to "niceness."

You can also use my website which has MLS access.

I use my realtor for access to the M.L.S and last sold price .When I talk to my agent about a house I already know a lot of info from doing my home work.

With easy access to financing, great connections in the contracting world, and good cash flow from my job, I'm on the hunt for the perfect first deal.

If it's a short distance from road to house, easily accessible, no trees, etc., you should be able to get the job done for around $2,000.Hope this helps.

Correct me if i'm wrong but the main reason to get a license is to have access to the MLS?

It will give you access to the industry and possibly some sweet deals:)