Owning an rv is not going to give you "something to show for it" - you will put a lot of money in keeping it running/getting it going and you are NOT going to get all that back. In addition, if your credit is bad, you aren't going to be able to get an RV that doesn't need a lot of work.
Are you going to continue working at Chili's?
Or do you expect your go fund me campaign to pay the bills on an ongoing basis?
Where are you going to park this RV if you do continue to work?
You won't be able to afford to travel on itinerant jobs if you're barely making it now with a steady job. It's not cheaper to live in an RV - unless you find ways to live off the generosity of others (living for free on someone's property, plugging into someone's electrical for free, begging folks to fund the cost of your RV, and so on).
I suggest you spend your efforts finding a job that will support your family and save the RV living for when you can actually afford it...
Sorry I sound harsh, but I think it's pretty tacky to post asking other folks to pay for your RV.
1975 American Clipper RV with Dodge 360 (photo in profile)
1998 American Clipper Fold n Roll Folding Trailer
Both born in Morgan Hill, CA to Irv Perch (Daddy of the Aristocrat trailers)