Hey neighbor, where are you located?
Probably the best trout to start with would be Rainbows, maybe 6 to 8 inches. Usually it's best to put your forage fish in the first year and give them a chance to spawn, but if your gonna feed the trout you could also put in enough structure to allow the minnows some protection from the trout.
Fathead minnows and golden shiners would be good forage for the trout.
I would also monitor temps. and oxygen during the summer.
In a small pond maybe 20 or 30 trout and a couple pounds each of adult FHM and GSH.