I purchased a used evinrude 7.5hp through craigsliat. It's a much older motor than your looking for seeing it's an 82 2 stroke. But it actually matched the year and make of my 115hp I had on my boat already.

I picked mine up for 150 bucks, needed to replace the helix in the twist throttle( found NOS kit on ebay for 50) 2 new plugs and it runs perfect. Purchased a used ez steer system from a board member here that offered me one for 100 bucks. And had about 10 to tie into my main fuel line for supply. I'm a touch over 300 in it seems to work nice the 1 time so far I got to use it. Still had to use bags that day, it was a little rough and to keep steering control I had to throttle up, I'm sure in calmer waters that won't be the case.

I will end up getting a bracket for it, mine is a short shaft and sometimes in the waves you hear it unload, and the prop drags through the water when on plane, I did not see any speed drop through. But even with a good bracket I won't be over 500 in it all. Which I think is a good deal.

I know outboard marine in port clinton has some prepped units they have serviced and are ready to go.....not sure what they have in stk but you can call and ask, they are super nice. If they don't have what you looking for I bet they point you in a direction