There's an awful lot of mystery associated with growing toms, and much of it is down to bunk personal preference, Jay, so I'd do exactly what you say, chuck in any compost/soil mixture, and let 'em go!
When I look around our garden about now, there are lots of tiny tom plants in with the weeds, because I chuck the old compost stuff everywhere after the season! One year, I found a clutch of over thirty plants, where one small tom had landed after clearing the GH, I got them all to develop into healthy plants and gave them to chums!
You can see that I like your idea!