I will bear with you but not bare with you.
The Slide carb can be used but it's just a little harder to set up but not that bad. The cure can be as close as your spare parts box. A sevo armwith the 4 arms will do. Remove 2 of them so that you only have them at 90 degrees to each other. From the carb to the arm you'll probably have to go with a ball-link setup but from the arm to the servo, it's up to you as you can use your favorite way from there.
Sorry, I don't have any pictures showing the setup as we did it on a friends boat.
Look at some of the slide carbed onroad cars to get kind of an idea of how it's done.