Hi Steve, just buy a little dovetail base plate for a finder, which you will have to drill 2 holes to screw it down. You`ll get a few crumbs in the OTA so if you are fussy you might have to remove the focuser to get them all out.
Then you can have a 8x50 finder with a dovetail bracket fit straight on in a few seconds and just as quick to remove...Places like bintel or Andrew etc should sell the finder with a matching baseplate..
Cheers
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