Of those being discussed, I can only comment on the AP mounts and then only the Mach 1.
The Linux / INDI factor may limit the performance / features you can get out of an AP mount. Specifically, AstroPhysics Command Center (APCC) and Astrophysics Model Maker (APPM) are Windows only. These two bits of software offer features such as horizon limits and pointing/tracking correction. Note that APCC is an additional cost with an AP mount and comes in two versions, the pro version has APPM.
You can use an AP mount without APCC/APPM, but IMO if you're going to spend that kind of money, it makes sense to get the most out of them, and to do that you may want the features offered by the aforementioned software.
Just something to consider...
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