I make my own mix. A variegation of 511. I use all the standard ingredients. Turface MVP sometime can be found at a farm store - we have stores called Agway. It is used for LL baseball fields - company name is Profile. In your area try SiteOne Landscape, Bear Delaware. Chicken Grit - look at Tractor Supply . Bark Fines - is sometimes called soil conditioner. Go to a large garden center, if they have a display, with samples of each bagged product, look through each one until you find small bark. It may also be labeled Soil Conditioner, or Planters Mix. I have used Frey Brothers products in the past. Or Twin Oaks. Hope this helps .

I don't live near you, but if you have an Agway close, their pine bark mulch is very good out of the bag for 5-1-1. I'm sure they also carry peat and perlite, but I've bought those at Home Depot as well.