QFC13 was set in 2003, and was run in 4.2; this challenge, if I’m not mistaken, will use the 4.3 open beta (in addition to taking place a little over a full decade earlier).
Incidentally, this reminds me of a combined Beam/Automation challenge set in the exact same year in which we had to build the same type of vehicle - and have them put to the test in a series of time trials.
However, it seems that you have forgotten to impose a price ceiling - $18k-$20k should suffice. For reference, the first test mule I made for this challenge costs $17.5k.