Welcome BusyMom,
Sorry about the loss of your husband.
As you see I only have a class b so I dont' have the same issues you have in backing it up, etc. but what went thru my head as I read your intro was the love & laughter you & your kids might experience as you allow them to 'help' you. Sometimes it is in the struggle that unexpected joys come. You can also imagine your husband watching over you all & having a great laugh. I hope you take advantage of their companionship while they are still at home. (easier said than done if they are 'typical' teenagers)
If that fails, this group of ladies will offer great advice.
Depending on where you live, maybe you can meet up with some of the group at a GTG (get together) or even create your own mini-GTG. Heck I met up with Carolb at a highway exit the weekend I bought my van in Florida. It doesn't take look to know kindred souls when you meet them.
Looking forward to getting to know you better.
Catherine