Used Mercruiser parts

I need to find a used ALPHA ONE GEN II , COUNTER ROTATION , RATIO 1.84 sterndrive for my Sea Ray. Does anyone have any idea where to get one, except just going through all the parts dealers on the internet? The dealers don't seem to post them on ebay, is there some other portal? Europe preferred but if I have to get it from the US so be it. Thank you!!

Might want to look at an SEI outdrive. They are reasonably priced, are new, have a warranty etc - a better alternative in my opinion than the unknown history of a used drive.
https://www.sterndrive.cc/

Also, think you need to look at your ration again.

Alpha One Gen II
Horsepower Engine Year Ratio
120 & 140 4 cylinder 1991 thru present 1.93 / 20-24
175 & 4.3 V-6 1991 thru present 1.81 / 17-19
198 V-8 1991 thru present 1.62 / 24-24
198 thru 260 1991 thru present 1.47 / 20-22