INSURANCE CO.

[tekebird]

I don't own a home, and I am sure if someone slips getting out of my tuck on a slick step there is coverage.

I would hope that someone you let on your bus would not sue you if they slipped

[Dallas]

I don't know if it's anygood or not for our purposes, but I saw a Lizard commercial a few minutes ago that advertises they will cover about anything.

Dallas

[Nick Badame Refrig/ACC]

I don't know if it's anygood or not for our purposes, but I saw a Lizard commercial a few minutes ago that advertises they will cover about anything.

Dallas

Do you mean a GEKCO?

[Dallas]

I don't know if it's anygood or not for our purposes, but I saw a Lizard commercial a few minutes ago that advertises they will cover about anything.

Dallas

Do you mean a GEKCO?

It might have been a Newt!

[NJT5047]

I would hope that someone you let on your bus would not sue you if they slipped

Sue they will...and would very likely be successful for compensation for lost wages, hospital costs, etc.   These days, way too many souls are looking for a little "disability" check.
Your "guests" have the same rights as they would at your home, and you have exposure for accidents. 
Regarding the question, I'm paying Farm Bureau $780 per year for an agreed $65K.  No appraisal was necessary, but due to an absolute fiasco with GMAC, I had an appraisal done.  The GMAC "fiasco" was, in part, due to the fact that I was attempting to insure only the bus. 
I finally saw the light and offered all of my insurance needs to one company and this worked great.  Farm Bureau bought into that idea. 
State Farm agent could not insure the coach.  I left State Farm and carried several thousand dollars a year in business after 40 accident free years of driving.    
State Farm varies in underwriting requirements from state to state.  Your experience with State Farm may be at variance with mine.
Farm Bureau's full coverage bus premium last year was less than $500 bucks for the whole year....went up substantially this year.  They blamed floods in NC and Katrina.  Everyone blames Katrina! 
I drove for a summer during 2003 with only liability insurance while GMAC dinked around.   
Any automotive insurance company will write "RV" liability...which is about all you need during the early stages of conversion...unless you happen to own a "D" or maybe a late Prevost or some such. 
Full timing is another can of worms.  I have no experience with FMCA, but seems a good possibility that they offer or know of sources for insurance. 
Home-grown conversions may be an issue with some companies.  I wouldn't use words like "bus,"  "conversion," or anything else that indicates you built it yourself.   If they ask, then an honest answer would be in order.
Factory built RVs are seldom difficult to insure.

Good luck with your insurance!  JR