Hootch
Welcome !! Newbies like you and me have to ask questions to learn. I also have a '31 Murray Town Sedan (Straight Windshield). You are fortunate to live in an area inhabited by such fiercely loyal Model A enthusiasts.
As for five helpers, at the national meet in Oshkosh, WI a couple of years ago a local club brought along a complete Model A Chassis, Motor, wheels and tires but bare of everything else. These folks were brillant in their teaching method. They organized the kids (with careful adult supervision) to take the transmission then motor out and put it back. This training went on for about 30 minutes then another couple of youngsters took their turn at the lead. Then, a clear, brilliant voice rang out "watch out, you're doing that wrong". I turned to look and it was a 12 year old whisp of a girl giving her brother the business. She knows more about Model A chassis than many including me.
Congratutations of your effort in buying Grandpa's car. I'm happy for you and your kids.