Those kinds of boat /blinds are done all the time.
If your interested...FIRST, make sure you get the registration so you can legally transfer it in your name.
Then, make sure the floor is good, if it's rotten, it's a fairly big job to replace.. correctly.
Make SURE the transom is still good, grab the lower unit and lift it up and down, if the transom wobbles or seems soft, run, actually do this first!!!!
IF everything is sound, proceed with your blind idea...and get a good motor.
These old rigs are a dime a dozen, you have no idea how many of these I've condemned as derelicts and brought to the dumps in my old job.
Trust me, it's not worth sinking too much money in these things if they're not sound to begin with.