Pix worth a thousand words. Your engine is at its lowest position on existing bolt pattern. First thing to do is raise the engine on existing bolts. ...
Not sure of best way but, I found best for me is to email pic to yourself from phone, select and download to computer, then select pic from downloads...
I have 2 stainless Mercury Tempest Plus props for sale. One is 24" pitch and the other 25". They both take Merc Flo-Torq hubs which are not included....
You will need to run the motor a touch higher or it will give you transom lift and lower your RPM. I never felt the need for more then a 14.5 Pro-ET...