You seem to be intent on jumping into the expensive bracket real quick and you may end up owning something you get to use very infrequently. One of the advantages of buying cheaper secondhand, not quite so clever hardware in your early astro 'career' is that you can easily flick them on with little loss and they can be good learning experiences to understand your own direction later.
My Grab&Go is just an 80mm F5 Achro, $200 worth on a reasonably solid photo tripod and in dark sites it's amazing what it can see. It doesn't do bad photos either with a CLS filter killing the minor achro effect it can have. It all fits in a alum case the size of a small suitcase with EPs and bits. That and a tripod and I'm good to drive all of NZ.
A Tak or Mewlon or whatever is a lot of money to splash out as an experiment to see if you like it.
I have the 10" and the Lunt 90 but they sit on the mount mostly. The little 80 gets to travel quite a bit.
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