it’s going to be expensive. I just hope there are enough people that they can afford to stay open for business long enough for me to upgrade a couple times. most businesses like this fold either before they deliver their first product or immediately after they didn’t sell enough to turn a profit.
I don’t know if it’s too complicated or not, but I’d say give paint.net a try if you’re using Windows: https://www.getpaint.net/index.html