I have a VA pond with yellow perch and have dealt with Zett's. Zett's has good fish; however, they are also pretty full of $&it. No need to stock daphnia, they appear on their own but Zett's will sell you a bag full of pond water for $20 by calling it daphnia. They sell golden shiners but decide to call them "silver shiners" so some uninformed customers will buy into their BS. Their yellow perch are good perch but they are the same perch every other distributor stocks.
I stocked FHM, golden shiners, and crayfish from Zett's and they all did well. I suspect the crayfish they carry are the reason I cannot get any lillies or eel grass to grow in my pond and if I had it to do over I would order 1,000 papershell crayfish from
http://www.smithcreekfishfarm.com/request_a_quote.cfm but my fish seem to love eating them. Zett's only has yellow perch in the fall and when I called to buy them they kept saying "we should have them in two weeks" and by October I got sick of waiting and bought from a mobile fish truck. My perch have grown rapidly and have pulled off several spawns.
If you stock LMB I would advise stocking only females to prevent your pond from becoming bass heavy. From the link in your signature I see your pond is 1/4 acre so 5-6 female LMB would be plenty. I suggest sinking a few christmas trees if you do not have any aquatic vegetation, the perch LOVE to spawn on submerged christmas trees.
Your YP can eat small bluegill fry but you should add another minnow. You can try to get spotfin shiners, satinfin shiners, or bluntnose minnows to establish but since you already have bluegill in the pond I do not think you can establish a sustained population without spending a fortune on fish that are typically not commercially available. Banded Killifish could establish if you were to wild source enough, CJBS2003 met with me a few years ago at the Tidal Potomac river and we used his seigning net to catch about 40 of them and they established well in my pond. Banded Killifish are very quick and predator resistant plus they spawn all summer long, Zett's carries them as "Bull Minnows" but they never seem to actually have them in stock. If you want to go the commercial route I would buy golden shiners and stock them ASAP. If you can get them over 4" great, if not you will need to wait a bit before you stock your yellow perch. You want the GSH to get big enough to pull off a spawn before the yellow perch grow big enough to prey on your brood stock.
