Chris,
Before you spend money on an AZ3, you should seriously go and check one out in the flesh... I suspect you will be sorely disappointed... IMHO they are one of the worst mounts going...
Whilst I know you balked at the $249 or so BINTEL want for an AZ3 there are some seriously better options, although they do cost a little bit more.
One option is the GSO Skyview Mount - best price available is through Andrews Communications, Graystanes NSW @ $299 although I note they are currently sold out with stock due in Jan 2021.
I've owned two of these, moved the first one on by mistake... bought another one..

Only recently moved it on when I upgraded to a Stellarvue M2C pushto, with encoders mounted atop a Berlebach... not a particularly cheap exercise...
For the money, they are excellent...
Bintel has this mount too but, they're $100 more for reasons I don't understand....
Another option is a Skywatcher AZ5 but, again, the price is climbing upwards..
Please, have an 'in the flesh' look & perhaps use the AZ3 before you actually commit to one... If you like it, then by all means, have at but, there are much, much better mount options available... even if budget limited.
Cheers