Help-Newb looking for a shop or DIY resources

Google "bus conversions" - this was the origin of FMCA. ST

There is a Do it yourself forum here at RV.Net. I suggest you try asking your questions over there.

r1racer from your description it looks like you need an rv minus the shower. An old Airstream is already an rv so find one and refurbish. Polish it up and enjoy.

If you are not going to be moving it often I would definitely look for a used larger travel trailer. Those big trailers are often DIRT CHEAP and all they really need is a resealing of the top, a good cleaning on the outside and maybe new tires if you are going to move it a lot. At the campground I was at someone was selling a 40' 5th wheel trailer for $2600, they said everything worked, it even had a washer and dryer in it.

Look more closely at regulations because if it is on wheels there might be a whole lot less inspections for a MH which has already passed numerous inspections. Of course, you are going to want to have somebody go over any prospective purchase carefully so you dont get stuck with repairs.

Using travel trailers (TT) for business is getting very big right now, as is using them as a guest facilities, as offices, music rooms, etc. in people's back yards! Just do a google for ... business travel trailers

I might start with a new(er) cargo trailer. Easy to modify.

Go over to cheaprvliving.com for some great examples of DIY conversions, and tons of helpful info.

Hello, welcome to the forum.
I don't have an answer on the price for your project.

Have you considered buying a used Class C or A and modifying it to your needs?

All the systems will be in place. It may be easier/cheaper than starting from scratch.