It's factory built, though I've ordered it through Jon at Millwoods. Just a point, Geoff, when you say 1000 miles to settle in, do you mean before you get the flat flooring done, or after? I'm not expecting things to be perfect from the factory due to the variables of how the car is used, weight of driver(don't ask), etc. Appreciate the advice here, and good that it is directly answering my questions, without too much extra fluff and conjecture that so often comes on forums.