Yes, you do astrophotography, so the heavier duty model makes sense.
Exactly, even if i don't do astrophotography it is just always good to have like extra safety no matter what, after all even if i will use it for visual then i am thinking to buy TV eyepieces and some can be heavy and with quality diagonal then that may give almost same weight or similar to imaging setup, after all i am using this Mak only for planetary imaging so only those small cameras, and small or standard filter wheel, not too much expensive the linear version than one without anyway.
I don't think so. TareqPhoto's model is quite recent, so I think it comes with standard SCT threading. I use one of the Scopestuff adapters on my 90mm Mak. It does the job.
Yes, it is recent, but i didn't know that recent one is likely same as standard SCT threading, i bought it last year, and i really don't know if SW upgraded it already as they included the new or green dovetail to the scope which i believe it is new copies, i really don't know how was the older models anyway, if any pictures around between older models and recent then i can confirm or tell before i do anything.
I did see some also replaced that Mak stock focuser knob with something from Feathertouch knob, i still don't know how this can be different than using the central focuser instead without moving the mirror, i mean which one can be easier for focusing anyway, and which should give better result if there is different results anyway, as choosing or that is always or only about which can make things easier or having less issues anyway.