Oh I know the pain. I wanted a PRC before I bought my Creedmoor. There wasn't ANY ammo out there except expensive handholds from some guy back east I found on the internet (about $3/round before shipping). Brass was like hen's teeth too, so I couldn't even find that to make my loads for the PRC.
If you reload, place backorders on any site you can find that lists the brass you need and you can hope to get started that way. That's what I'm doing now for the higher quality brass out there I'm looking at (Lapua and Peterson).
If it's in the budget, maybe even swap barrels for now to get a caliber for which you can actually find ammo.
I like the PRC performance but the ammo was my deciding factor for going with the CM. Before I even found my rifle I found a 200 round box of Hornady American Gunner 6.5CM which in the end cost about $1/round but I have a ton of brass and bullets aren't hard to find. It's primers that are the real limiter in my local market and on the internet.
I started load development with H4350 but it's hard to find too. I found 8lbs of H100V and bought that. It's not an "extreme" powder and isn't everyone's favorite (which is probably why I was able to find it), but there are recipes for my caliber, it'll go bang and 8 pounds will last me quite a while.
Depending on where you live, I recommend driving out of town to a smaller town with a sporting goods store and see if they have primers and powder. They won't have the PRC ammo but you're going to need those components if you plan to reload. Reloading is fun and relaxing for me, and load development is interesting as well. I personally love these little "science projects" trying different bullets, powder loads and bullet jumps to see how my groups look.
Once your wife sees the groups you shoot with your "novelty" even if she's not a shooter she'll come to appreciate your hobby