Simon,
I don't know the venue, but from looking on youtube as you have done, it's predominantly a polished wood floor, a 2wd will certainly test your abillity to drive or will be a steep learning curve! Have you considered a 4wd buggy?
Just something for you to consider.
P.S. It's a Madrat, not Mudrat
But not a bad name it's got to be said..