Reading through the other posts, I think BengeBoy has my vote for the most ethical approach that gives your "home team" the opportunity to step up to the plate.
I personally would just order it. If it felt good on the test ride you had. Any additional fit issues would be resolved by component switches anyway. Any obvious sizing or other issues would have been obvious imediately. Of course, I bought a vintage bike and had it built up using moderm components without ever test riding it before spending $850 on upgrades. I would have felt stupid if it was the wrong size.
However, the bottom line is that you said it feels sleazy to you. If the thought of an additinal test ride when you aren't planning to buy from the shop doesn't feel right to you, then it probably isn't right for you.