Just got off the phone with the crew at Condor. What a great bunch of people!
I explained my situation and that I really did not want to install a third tiedown in front since the manufacturer didn't and I don't know what is down there in the heated basement and I might hit something vital.
The solution we came up with is E Track that does not have to be bolted through the floor and has plenty of holes for it to be lagged to the floor. I actually ordered enough E Track and clips to run 3 8ft tracks which will give me the flexibility to tie down whatever other toys Santa Claus or the tooth fairy my bring in the future.
I've owned those two Condor Pit-Stops for a number of years and I'm absolutely happy with the design and quality of materials they used in making these.
It is not often that you find a company that sells a quality product and has fast and friendly tech support to boot. The fact that it's all made in the USA is icing on the cake.