i've got some quality dove 1.7 rockers if you need a set. also, with the lifters, snug up the locks finger tight (you should be able to feel some friction when spinning the pushrod when they are correct, tighten the lock and then ad a 1/4 turn to the nut to add the pre-load if I remember right... it's been a while since I did hyd lifters.
I also have some ARP bolts that you could probably use, I believe they are 7/16" but have to check.. They'd be yours cheap...