Two Hams In A Can, Jeff and Suzanne,
Did you see
THIS 2006 PC-2400 for sale in Iowa by an RV sales & service center? I believe it has only one house battery and no whole house inverter. If you can do without them, make a low-ball offer and see what happens. It is the close of the RV season and so they might let it go cheap. Use the single battery and no inverter as your reason for your low offer. How low an offer you ask? I'd offer $32k over the phone and see what happens.
If you wonder, I don't believe there is any way to retrofit a second battery and inverter without extensive modification, likely not worth doing. You'd be much better off buying a PC with them included. I think they were added mid year 2006 so some 2006s have them, some don't.
I live about an hour from you, not too far off your path to Iowa. Stop by to examine a 2007, a year newer with two batteries and inverter, no-slide 2350 if you want.