FWIW, I have a 1986 Evinrude 15 hp that is set up for remote steering and throttle, so I know it is possible. It can be costly unless you buy everything used. I have a 16 ft jon with a metal side console, steering wheel style helm, and throttle lever mounted to the sidewall. This is what I think it would cost new:
side console: $200
kit to adapt motor to remote: $200
steering wheel and cables: $350
Throttle lever and cables: $200
Used would be much, much cheaper. Probably a couple of hundred dollars depending on choices you make and deals you get. Often, someone with a problem boat will get rid of the whole thing for a cheap price, and you can gut out the steering wheel, throttle lever and cables. The side console is a bit of a problem unless you make one yourself. I used top know a website that sold them ($169?), but I lost the URL.
I found this console for $100 while googling: https://springfieldmo.kijiji.com/c-Cars-vehicles-Boats-SIDE-CONSOLE-FOR-BASS-OR-JON-BOAT-BLUE-GREY-WITH-LIVE-WELL-W0QQAdIdZ126326658
Here is a link to the side console like I have [scroll to bottom of page]. https://alumacraft.com/boat-options/boat-options.php
You can see what parts are needed to adapt at shop2.evinrude.com. Select OB ACCESSORIES from the drop down at top left, navigate to 1977 and 15 hp and look at the diagram for remote control.
I don't have any experience with stick steering but it seems like a good idea, and less costly.
Just my two cents..
Ken