ordering is a great idea and what i did too.
the factory or dealer SHOULD be able to supply you with a 'built sheet' and options list.
many of the options have a SURCHARGE along with the price of the item itself.
some changes like a LARGER fridge don't include this UPcharge (go with the 10 cf model)
while others, like a flooring change (avoid carpet), or window change do.
IF you have rv'n experience it's pretty easy to decide what extra bits YOU need or want.
others have to just speculate.
-solar is nice, but expensive for what's included.
-ultra leather on EVERY cloth surface is easier to clean and care for...
-FULL awning package is nice, essential really.
-'gen prep' adds a 30 amp plug to the front of the trailer which give 2 options for hook up.
-electric stabilizer jacks are fun and easy.
-40 lb lp tanks good (i c u have those)
-sky lights? (i ordered ONE LESS skylight)
-extra vista view windows?
-a second a/c?
-make sure IF only 1 a/c it is 15,000 btu model with heat pump.
again there is a LIST and price sheet u can get, like this OLD one i used...
((click on the attached pdf in that post 2 view the options list))
imo U will need a 3/4 ton truck OR a heavy half ton.
the trailer is gonna weigh what 30s weigh.
and the tongue with gear and lp gas will be ~1000 lbs, maybe more.
factory estimates of weight are ONLY estimates, and don't include FLUIDS or options OR normal gear.
so the tundra is gonna be MAXED out with regard to payload, easily.
can it work? sure
will it be fun towing? depends on how u define fun.
would more beef be a good thing? definitely.
hitches are another issue but i favor the ones that REALLY do eliminate sway AND make towing more peaceful...
enjoy the new toy!!!