There are currently no companies that specialize in converting a van into a wheelchair accessible van.
It depends on you insurance provider. Some companies do offer deductibles for wheelchair vans.
Chances are you can find exactly what you are looking for by looking on the website craigslist or ebay. There are many companies and businesses selling used wheelchair accessible vans.
There is NO requirement that ALL mobile homes, apartments, duplexes, or apartments be wheelchair accessible.
There are several companies that can do that. Try New England Motor Car.
Unfortunately only the Gift shop, restaurant and the gardens are wheelchair accessible.
You can usually turn any van into a wheelchair accessible van if you take it to the right place.
There are some companies that make portable wheelchair with carbon fiber parts. The parts include carbon fiber wheelchair seating components.
Ocean cruising is relatively easy for manual wheelchair users, all bar the smallest ships have acceptable facilities and helpful staff. You might need to negotiate accessible excursions, but it can be done (for example, in Juneau, Alaska, they have a wheelchair friendly coach and boat for a fantastic whale watching trip. Scenic have semi-accessible river cruise boats, but no guarantee of getting on/off at stops. Ama claim they will have one accessible cabin on one boat next year. Whilst some trains have wheelchair spaces, I've not yet found any train tour that is wheelchair friendly. Orient Express is particularly dismissive. It amazes me that it is still so hard for active wheelchair users to get a decent, normal, touring holiday, without spending a fortune or putting the whole thing together themselves. The companies involved seem to have no real intention of even trying to change it. Daft really, as young, fit, active wheelchair users are a growing market who tend to show huge loyalty to companies who do make an effort.
There are a number of companies in and near Dallas, TX that offer wheelchair van rentals. Please visit http://www.accesstravelcenter.com/van_rentals.cfm#texas_north_central, and you will find a list with clickable links to each company's web site.
HoverRound and Jazzy are two of the most well known power wheelchair companies. They have a wide variety of styles and options to fit any need and price budget.
You should check http://www.wheelchairgetaways.com/ before you rule any possibility out. They have a good compilation of wheelchair accessible vans and a good database of rental sites across the U.S. including Northern Alabama
At the moment, they do not have any wheelchair accessible bathtubs available, however you can purchase a shower and place handicap shower bars and a stool inside for easier use.