I remember you from your previous presence here. And I've seen from your new posts (and signature line) how excited you are to get back into it. I just didn't want to be the one to pass along the bad news.
I used Plus-X for decades myself, and Ilford FP4+ is a fine replacement. I'm using it in a new 6x7 camera I purchased and that combination will be the basis of my submission to the current round of the Blind Print Exchange.