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In temperate climates you'll want active cooling and there is sample variation from OK to great. I've got one with excellent optics and the one Ian Fry owns has A grade optics too; Ian has considered selling his previously, you could see if he's interested in selling.
Precise collimation is easy using an artificial star inside the house and the 8's tend to have very minimal mirror shift so the collimation stays good.
I haven't imaged through mine but it has mirror locks if needed.
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