Free: Contests & Raffles.
I have one of these and you are looking at about 2 pounds per person.https://www.rei.com/product/128692/rei-co-op-half-dome-2-plus-tent
Do you have a canopy on your truck? I sleep in mine and it works great with a tarp rigged to the rear for rain or sun protection.
I presume that you have taken Hunter Safety.
Don't know about your experience camping/hiking in the fall/winter, but it is wet and cold in the mountains in the fall. I imagine the peninsula is even more wet than the Cascades, which is what my experience is based on.If you are looking for an on the go type of shelter, I would just keep a decent quality tarp in your pack, which can be used as a two person shelter in camp, if you didn't want the traditional tent.Floorless would be fine, and it is more of a preference thing, really. Having no floor is better in the fall/winter, to me, since there are fewer bugs to worry about.
I was going to mention this. Slumberjack has a cool tarp set up that you can hook to the back of the truck to give you a dry area for a little table and place to cook. My main advice would be not to go cheap if you want the old lady to be comfortable. What works for you might not work for her and if she has a poor experience to start, you might not get her out with you again. Unless that is the goal...
Unless you have a topper on your truck (as Oldguy mentioned), you'll certainly need some type of tent. Trust me, there is no enjoyment (or peaceful rest) sleeping on truck seats. The peninsula can be a wet mess some years (ranging anywhere from archery season on...….). You won’t be able to dry wet clothes by sitting in a truck either. "Ideally", a tent with some type of heat (particularly for a base camp setup) will get you and your significant other off on the right foot. I’ll get to the tent in a second. For the heat? You don’t have to go all out and get a cast iron stove for a wall tent, or, a titanium backcountry stove to start out. You can simply get one of the Mr. Heater, propane tank heaters, and pop it onto a 5 GAL propane tank and you’ll be fine and dandy for a handful of days. As far as a tent goes, yes… something with a floor is nice for the type of camping/hunt you mentioned (base camping). There are many manufacturers out there that sell reasonably priced tents. For two people, base camping, I would go with at least a 4 person tent (or even larger)… that gives you room for your pads/bags (cots if you’re gonna use them), a camp chair or two, a small camp table, a heater, and your gear. As Stein mentioned, a tent with a floor and screens is a good thing, particularly if you’re not fond of biting insects. If you have the bug to use a Tipi, look at the Luxe Hiking Gear Megahorn Tipi (4P) with wood stove jack (you can add a stove later if you wish, but can start off with the heater on a propane tank like I mentioned). https://luxe-hiking-gear.com/products/megahorn-tipi-tent-wood-stove-jack They are very reasonable priced, are bombproof, are easy to set, and well… tipi’s are just cool. Put some inexpensive plastic down for a ground cloth/floor and you’re off and running. If you go with the tipi, there is really not room for full sized cots but you’ll be fine with a couple of good sleeping pads/bags. Happy shopping!