I love spending other peoples money so welcome from me Bruno.
I think I would go for a 100 mm espirt, a eq6 and a ZWO mono cooled camera with a seven position filter wheel...2 + 3 + 3 = 10☺
Getting the best from that selection will be demanding.
It will be interesting to see how folk would spend 10 k.
I would go for a large reflector if you want big appeture but long fl means you will miss a lot of neat objects I feel...and long fl means tracking needs to be perfect which usually means a very expensive mount...if you only want to do planets long fl is what you need but you get tired of planets real quick...
Alex
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