I have not put them in the ground yet since they are just barely sprouted seedlings, but Iordered seeds from Stan. I have Yuzu, Ichang lemon, Dunstan, Swingle, and Tennessee citrumelo, US 852 Citrandarin, and trifoliate orange, including the Flying Dragon variety. I do not have any satsumas unfortunately, but I’ll probably order some seed once Stan says it’s available. I am in the same zone as you.
I think the trifoliate rootstock will be fine, but you might have problems with the satsuma part. It will probably still need winter protection.
I have read a lot from other people about the inedibility of citrumelos and Ichang lemon, although some people have contested that they enjoy the flavor of Ichang. I think for me, it’s not so much about having immediate satisfaction in cold hardy citrus. I want to keep selecting for cold hardiness, improved flavor, and less acrid flavor and resin until there’s a variety that’s cold hardy and delicious. After all, the watermelon ancestor was a gross tasting melon, but nowadays we have so many luscious varieties available.