You have to make sure you don't get on the wrong side of the law by advertising but if you have existing relationships you can leverage those.

This will also give you a chance to get multiple quotes and find someone ideal, for you specific situation.You may make a connection with a GC that will do amazing work for you since you built that relationship.

I would take that $40k and identify an area that is up and coming, near a college, university or employment draw, and purchase a small condo as a rental. 1 Bedrooms or studios make excellent rental investments. 

That may actually work out twice as good as you can build relationships with these drivers to send you leads if they find any.

I have excellent credit, make about 75k/year with no OT, no other debt than my truck payment, and I have about 50k to put down.  

@David Bokman Makes an excellent point. 

Where are the headaches- you have a relationship with the contractor and maybe plumber/electrician.

It is imperative that the agent have experience in flips and rental properties of his/her own and be able to hopefully establish a long term relationship in purchasing multiple properties in that area.

Excellent!

@Mark S. also makes an excellent point that we probably don't even want to deal with the vacationers taking the cheapest options.