Reinforcements and Reinforcements 2 took a while for me to get complete, unpunched copies. You just have to wait out someone to put one up on eBay
At least you’re not looking for the 3025 House Marik book or the original Kell Hounds. What you’re looking for isn’t super common, but at least when they pop up they won’t totally break the bank
As mentioned, check out the buy and sell group on Facebook. Sometimes people have copies of things they’re willing to part with.