Mike,
Welcome to the site.
That 7 up machine would be a good garage machine if it is working order and you can get it for a good price but don't expect to flip it and make a big buck on it. Restored it would be very nice looking but you would have a hard time getting the money invested into it out of it. While it is a good looking machine, it is also very heavy which makes it hard to move and too heavy to move around in the house.
You should wait for something smaller to come along. Just keep an eye on the ads and something will come along (and then another,
and then another . . . )and the guys on here will help you figure out a good offering price if you are not sure.
Tim