http://www.soarr.com/search/trucks/Kenworth/T800/ This site lists over two hundred Kenworth t800s that are currently for sale all over the country. They seem to cost between $50,000 and $150,000, but there are some outliers.
You can find used and new Kenworth t800's for sale online or at a local auction. You can often find good deals at the following website: www.busforsale.com/
There are a variety of places that one could find parts for a Kenworth T800. Visiting the Kenworth web home, one can also locate services where one may be able to order the necessary parts for a Kenworth T800. Another place that one could find parts for a Kenworth T800 is at American Trucker.
You can find a wiring diagram for a 2006 Kenworth T800 in the truck's service manual, which is often available for purchase online or through a Kenworth dealership. Additionally, websites like eBay or specialized truck repair sites may offer downloadable manuals. Forums and online communities dedicated to Kenworth trucks can also be helpful resources for locating wiring diagrams shared by other owners or mechanics.
Behind the kick panel on the driver's side.
Behind the kick panel on the driver's side.
According to http://www.kenworthsf.com/virtual-t800.html, the Kenworth t800 is known to be a very versatile worktruck great for pickup/delivery and hauling. Many users claim it has the lowest maintenance cost compared with other work trucks. This website http://car-and-safety.com/service/kenworth-t800-2006.htm also seems to be an excellent site for getting personal feedback from those who've owned the specific model you're inquiring about.
It's either on the back side of the turn signal controls or on the dash, depending on the model year.
You can find many Kenworth dealers near you right on their website: http://www.kenworth.com/3100_sea.asp As for price, you're looking at over $100,000 depending on exactly what type you want and its condition.
Not without modification.
Need to know model year and engine in order to answer this.
~4 lbs. Charge it to that point, and you should be alright.
Behind the kick panel at the back of the driver's side footwell.