Ready to take the leap & spend some $$$

The Capri at 980# is a good choice, the remaining problem being to try and keep the weight down. An air cond is about 100# and (if dry camping) you'll need a genny to run it (for a Honda 2000i add another 46#). Will you have a furnace, holding tanks, shower and water heater, and 12v converter/charger?? A properly vented catalytic heater might save another few pounds...The list goes on & on!

You got the basics covered.
No need to upsize rims if you can get adequate tires for the 15's, although your E load rated tires will have more selection in a 16" size.
Brakes, kinda stuck with what you got unless you do some serious upgrading....$. Just make sure they're in good order and that the rears are working with correct bias, a common problem with older drum brakes on the rear is they arent working up to capacity and you dont really notice in everyday driving.
Also make sure the trans is working like it should and locking up the tq converter when it needs to, will help with engine braking.

Are you running factory wheels, not tires, and if not then what are they rated at. Seems like a silly question but the wheels are your support from the axle to the tires just my 2 cents

no, do not upsize tires/wheels. you will lose gearing.

brakes, you can add ceramic pads; less fade, more hd.

afa power needs, use it first and you will see what is needed based upon your usage

Sounds great.

I personally wouldn't change the wheels, unless they aren't rated for the load you will be carrying. Temptation is to put bigger diameter wheels and tires on, but that raises your height, reducing stability and raises your gearing putting a bit more strain on transmission and brakes.

You might be able to get upgraded brakes - others will probably be able to make suggestions there. I've noticed that with a manual transmission I barely use the brakes but with an automatic you are having to use the brakes all the time to fight the engine as you come to a halt so brakes become more critical.

Don't buy a generator right away, you can decide if you need one later depending upon the type of camping you do. If it is mainly summer use and you have a fridge that can run off LPG you won't need much battery power and the truck alternator should be sufficient to keep the battery charged if you are driving every day or so. Personally I don't have a generator: More weight, takes space, means carrying fuel for it, another piece of equipment to maintain and a bunch more money to spend. What I have done that is well worth it is fit a couple of solar panels and charge controller. These not only keep my power-hungry compressor fridge running, but also keep my camper battery conditioned and charged when I'm not using the camper.

Good luck with the camper,

Steve.

That sounds good , ill bet you'll be happy with that .