Eugene, I would recommend eliminating the onboard dryers and go with standalone dryers. It will save time and give you ability to wash more cars, and have some flexibility with dryer layouts. Plus a standalone dryer will probably save you a few dollars.
On another note with
Washworld, I will start by saying I really like the company. I have 2 of their machines. Great tech support, a lot of really great people there. BUT I feel they are making a mistake in limiting distributors areas. When I purchased my first machine I had 3-4 distributors in my area, 3 that wouldnt give me the time of day, and 1 that was awesome. Now he is no longer around and I am told I have to deal with a certain distributor??? Why would I deal with a guy that didnt want to sell me anything? I rarely use a distributor as we do all our own repairs, but if I need certain parts I am stuck. If distributors have overlaps in areas, a good distributor will not care about that, a weak one will complain someone else is selling in my area! To tell me who I have to deal with is just wrong. If I dont like the GMC Dealer around the corner I go elsewhere.