astro camera to go with a sw 71 ed pro?

[TiffsAndAstro]

hope this is the right sub forum to ask this?

half decent camera lenses are stupid expensive, so im thinking of getting a sky watcher 71 ed (i think it is), flattener, filter drawer, rotator and a zwo 585 uncooled colour camera  for not a whole lot more but new. 

i saw cuiv and at least one other used a planetary (i think) camera for dso with pretty nice results. is that something i should even be considering?

will also get a budget guide scope and mono camera. this is all going into a dodgyish 4way usb hub into a laptop running nina. sky watcher gti mount. 

back focus with a filter drawer (i assume i need one on a colour camera for light polution but not sure of a second filter needed for osc camera) and flattener and rotator i saw in a video might be an issue too