Hi Kirby, welcome to the forum!
If you are looking at the 10” full scale minstrel model here are my recommendations:
Option 1: use the provided strings and use the high set to tune to E.
Option 2: use the provided strings and use the low set to tune to low A (almost a full octave below standard G. If you go all the way to low G the strings are going to be maxed out and they won’t intonate very well).
Option 3: purchase a set of banjo nylgut, gut, or nylon strings that are intended for G tuning and tune to standard G.
My provided string set allows you to choose from a wide range of tunings, but to get up to standard G they don’t quite allow it or want to hold tuning. I make the sets from classical guitar nylon sets. I discuss this in a previous thread about strings here on the forum.
Hope that helps out and hope to make a kit for you.