HA.... I too bought a new Dutchman build stick hybrid for a son in about 2-3 years ago and the very first rain resulted in a leak at the front tilt out that took three trips to the dealer to fix and they finally had to replace the entire tilt-out and frame. Added to that, the table was to small for the dinette bed and they just said "Stick a couple of 1"x4's across and put the table on that! The MFG didn't want to replace the upholstery that got soaked on a 1 month old trailer saying "It will get wet someday anyway". Fortunately my local dealer (One of the Best!!!) stood up for me and new upholstery and a new table top were forthcoming.
If you really want to maximize MPG's you won't want a sticky due, not only to lots of extra weight
, but the biggie, lots more frontal area that will stick out around your sprinter.
As it pretty much sounds like you will need at least a 16 or 17 footer+, you will find it difficult in SoCal to meet your year 2000+ age and $5-10k budget. Take a look at the SOLD column in fiberglass-RV-4sale.com for some typical asking prices, especially those within a 500 mile radius of SoCal. This is the hottest market on the continent, the vacation buying season is under way, and prices will, no doubt, be a bit of a shock.....
Now... Any sticky over about 10 yeast old is reaching (or has reached) it's designed life expectancy. On the other hand, even my 42 y.o. Hunter didn't need ANY structural or interior repairs when I got it three years ago. It still has the original wall upholstery, that any leaks
would have destroyed in short order.
While it's much to small for your needs, if you would like to see an unmolested 42 y.o. FGRV, drop me a pm, I am in Riverside.
We sold a 10 year old, 13' Scamp
and a 15 year old 13' Lil Bigfoot
for close to $10k several summers ago. The market is HOT and there are buyers out there that see that kind of money for an RV as chump change, for a ready-to-go-camping unit.
Tip: And as I mentioned earlier, when you see an ad in SoCal, don't waste a minute. The last three FGRV's I bought in SoCal I bought within 4 hours of when the ads first appeared, and all of the sellers had long lists of back-up cash, sight unseen offers waiting. Needless to say, this also makes haggling more difficult if the price is even close to reasonable.