If only one cylinder is pitted, put a thinwall sleeve (3/32")in that one hole, and bore it .060" to match the other cylinders. Then re-use the pistons you have. There's no telling how many one-hole sleeve jobs I've done over 40-something years of engine machining. Of course, I've also been given "worn out" race blocks, sleeved all eight holes back to standard bore, and beat my competitors with their own junk!
Jerry