Gentlemen,
I greatly appreciate all of your insight and assistance! I wound up going with a set of nylon classical guitar strings (d’addario pro arte), using the four lightest strings in the set: .0280, .0322, .0403, and .029w. I used the 50 lb. fishing line from zebco (it’s called omniflex, .029 gauge) for the fifth string. I’ve found that this works perfectly! On the original set I got with the kit, I kept it in F tuning, but I tried going down to E, and I’ve found that both the banjo and I prefer it lower! Thanks again