Yep, I use a lot of stuff from the homebrewing store, they are right around the corner. Rice hills for aeration, malted barley for enzymes, citric acid for pH up (rarely use anymore), growlers and airlocks for ferments, funnels, brushes, and paddles to fill stir and clean my sprayer…
Unless you’re making a hot “super soil”, seedlings will do just fine in a normal mix. I use the basic “coots” recipe. You could just use the base soil mix, but I find seedlings to be pretty resilient.
Base soil mix
1 part sphagnum peat moss
1 part compost
1 part castings
Per cubic foot of base soil mix
1/2 cup neem meal
1/2 cup kelp meal
1/2 cup shrimp or crab meal
1 cup oyster shell flour
1 cup gypsum
1 cup basalt rock dust
1 cup glacial rock dust