I looked (with intention to buy) for about 3 years....until I stumbled on the one I now have. I set out my conditions that it had to be, and stuck to them...made a few trips south to check out a few that turned out to be "not as asdvertised" but when the one showed up that met all criteria other than slightly outside of my original budget, I had to move on it very quickly. I ended up getting mileage in range I wanted, color, condition, model and year, one owner, and all maint, done with records. It was worth it for me, since I haven't spent anything on it, other than my own upgrades. (which is addictive and expensive)
Bottom line, don't rule out going to the states to buy....prime members are located just about everywhere, and most are more than happy to go see the proposed purchase, take lots of pics and drive it. Then report back to you. If the seller is legit, then this will not be an issue...the process to bring back is very simple and straightforward.
Only problem with having an NSX in Manitoba is it only gets driven about 5 months of year. I guess that is really only a problem for me, not the car....lol.