Torque Converter Guidence?

After some intense snooping around online, I decided to go with the Pat Blais converter.

Guy has got quite a reputation for quality work specific to TFs and the price was agreeable for my wallet.

Bummer that I won't be able to get this done this weekend, but it is what it is. Maybe I'll take a day off next week and pull an all nighter. :)

One last quick question for you guys that I don't want to make a whole new post for:

Sprag kit (just replacement rollers and springs) for a '72 a904... 10 or 12 roller? I'm pretty sure it's 10, but I want to be certain.

Thanks again for all your help. Y'all are awesome!