Bump for you because I want a wagon.
Once you go longroof, you never go back, lol.
To the OP, who did you import through? Maybe they would serve as a decent appraiser?
A word of caution before heading too far down this road, the way arbitration works is each party (insured and MPI) assign an appraiser at their own cost, if those 2 parties are not able to reach an agreement, a 3rd party is brought in with the cost split between the 2 parties, whose say is final and binding. As we have only 1 auto insurer in the province, it's an underlier that the appraisers won't want to piss off MPI, as the bulk of their work comes from them. I was contemplating going this route a few years ago and decided that with the extra cost to me, and the way the deck is stacked against the insured, it wasn't worth the risk to me. It's a broken system, and the sheeple are blind to it. Good luck!