I think that $4,500 is a reasonable price for a 7.3L equipped E-350. The high roof helps your conversion plans too. If you spend $150 to have someone inspect it, I would not bother trying to tell the owner it is not worth 4,500 but only 4,000 or so. You might as well just give him the asking price.
I have been watching a 7.3L equipped E-450 shuttle van for sale on Craigslist. I guess that most people do not want a 2003 van, or it should have sold sooner. Or the asking price is to high.
There is a member of Rv.net who said his 7.3L E-350 engine failed at around 550,000 miles, so I don't think that anything under 200,000 miles is subject to failure at this point.
Have fun with your project.
Also check out this site.
Tank-Depot.comDo you plan on installing a extra battery? In the 7.3L trucks, there are already two batteries under the hood required to warm up the glow plugs then start the high compression engine. If you want to store the extra battery inside the van, then you can buy a sealed AGM battery - because it will not give off hydrogen. Then use a relay to run a charge line to it while the engine is running.
In my motorhome I used a 12 volt power source to run my battery relay from the "Radio" circuit, it is only on when the key is on ACC or run position. A 30 amp "Fog light relay" would be strong enough, even though you might have more than 30 amps going through it sometime, when you turn it off, usually less than 10 amps will be going through it, and it will last for years. #8 wire is rated at about 40 amps and will have much less voltage loss than a #10 wire. Smaller wire might not handled all the loads and still charge the battery correctly.
I would also suggest that you "Splurge" on a Fantastic fan. They will provide a lot of fresh air, and with a Maxx air cover, you can leave it open in the rain too.
Fred.
Money can't buy happiness but somehow it's more comfortable to cry in a
Porsche or Country Coach!
If there's a WILL, I want to be in it!
I havn't been everywhere, but it's on my list.
Kangen.com Alkaline waterEscapees.com