I would be very weary of trying to sell a car like ours on Bring A Trailer.
You have to consider the audience. The cars that draw the most attention are typically Porsches, Ferraris and more modern cars. If there is a not a lot of attention, then the bidding never really heats up. Also, members on that site seem to know very little about As so that doesn't help either. Then add "No Reserve" to that equation and you've opened the door for a steal for the buyer.
On the other hand, it may be a good site to try to find cars since your competition will be more limited. You don't have a line of experienced Model A owners fighting against you. You're obviously taking a chance in not seeing the car in person, but at the right price it may be worth taking a chance.
Here's an example from this weekend:
https://bringatrailer.com/listing/1929-ford-model-a-95/
Would you be happy selling your car in that condition, at that price? I'm going to guess, "No."
Would you have taken a chance on purchasing that car at that price? You have to be asking yourself if that body is rust free? ...and if those little quirks in the startup video are a big deal? Regardless, seems like a good price to me. If that car indeed runs well and has little rust, etc - then that is a total steal. You'll note the comment stating "Fair Market Value" - I'm not sure about that.
Knowing the general ignorance of the users, and their predetermined interest in specific vehicles, I was able to buy a 1970 Triumph Bonneville very well under market at No Reserve. The seller was ready to see it go, but wasn't super pleased with the sale price. For me, it was low enough to buy it based on photos alone and have it shipped halfway across the country. I could have probably flipped it for a 25-30% gain locally with no problem.
They are almost blind to certain vehicles on that site.