I'd say to go ahead and try it. If you feel by the time you get to the West Coast you need more power and stability, at least you will be in a market where the 4runner would fetch good money for a down payment on something else.
Emissions standards are not friendly to diesels at the moment. Yet that does not seem to deter young morons from presently buying them and then jacking them up 10ft into the air.
Yep, pretty sure I am. First I am going to try renting a small camper in the 3500# range with a single axle and go camping up at Mile High Campground off the Blue Ridge Parkway near Cherokee. IF it can tow that then at least it would give me an idea of its capabilities.
While its not West Coast grades and altitudes it would be a really good test for around here.
IF I can't even tow 3500# in the relatively tame by comparison Eastern Mountains then I would sadly have to think about selling.
Diesel wise I have been thinking of ways around this DPF manure, maybe there is a way. They are damned expensive.
I can't believe they haven't come up with something in 6-7 years.
Even as it is right now its not too bad IF you drive mostly long distance instead of short little trips.
They also have a DPF now that you can easily take off and clean once a year and put it right back on.
Also if once we get to the West Coast, we live in this little camper for as long as it takes to buy a nice place that is in our price range which naturally is considerably less than our taste demands. IF we can't find something then we may very well just buy a really nice 5th Wheel and a big diesel with a 30,000# towing capacity.
We could go at most $250,000 for a house and that would be harsh, we do not want to be House Hostages where the mortgage makes it so we can't take off when we want and camp or go on a cruise etc.
I am pretty sure we can find a 5th wheel and nice truck both used for about $75,000ish for the pair.
If set up properly we can manage our funds to suite our needs for that month.
We could Boondock for a month and pay zero to save money or in perfect weather in a perfect place somewhere we could spend $1600 a month to live in a plush resort complete with every amenity.
Some RV resorts are very nice, full golf course, pools, spas, hot tubs, WIFI, cable TV, well maintained pad to pull onto complete with a deck, patio furniture, outdoor kitchen, right on the ocean/lake/river.
In some cases you can also BUY a spot if you find that absolutely perfect RV resort that fits your every whim in a state with perfect weather, great fishing