I think the only way to know if you’ll be happy with it is to try it. I ran some pretty crummy setups over the years, but always refrained from mix matched subs. If you had everything already, then it doesn't hurt to test it, but if you have to buy stuff I wouldn't waste the money.
Only time I recall testing mixed match subs, was back in like 2000-2002. I had a pair of Jensen XS 10’s, my cousin had a pair of MTX 10’s (Thunder 3000 I think), we had just built bandpass boxes for them and decided to stick both boxes in the trunk since they fit, just to see what happened. It was louder with both boxes running, that said, was testing bass / perceived SPL, so no idea of overall response. Did it sound good? Probably not, but was louder on the music we listened to. This test did not cost any money.
I still never wanted to use any setups like this and never have other than that test.
While it might work fine, there can be phase / cancellation issues, and likely won't perform as well as properly matched subs in the proper enclosure would. I’d rather get some decent 12’s in the best box you can get / make, on some decent power and be done with it. A pair of 12's on good power can be pretty loud, and or sound really good depending on what you're trying to achieve. If you can fit 4 12's in a proper box, that's great as well and should be able to get a lot of output, but I'd only do matching subs.