I found the newer valves have more sweep angle, so you may want to factor that in and keep the control panels with the manifold so they match.
The newer valves and control panels have LOW in the 3 o clock position.
The older 8101 control panel LOW is in the 4:30 or 5 o clock position.
Edit: here's a newer 8128. Compare it to your 8101 and you'll see what I'm trying to say.
View attachment 99329
Edit 2 an 8101 for example
View attachment 99330
Yeah, autocorrect got you. If you click on the three dots you can edit your post to fix typos.