I'm working on the same sort of plan.

I planted white clover, then added crab apples, Bartlett pears, Macintosh apples, persimmons (I may be to far north for these, but we'll see in time & 3 types of oaks + a few hybrid chestnuts.

Yeah, kinda a grab bag.

Still mow the clover some & fertilizer each spring. BUT it's a heck of a lot less time & $$ intensive than going from scratch each year.

And so far after it's 3rd year it's doing good overall. If I were starting over, I think I'd plant no persimmons, but more chestnuts. Otherwise I'm happy so far.