Sounds like that is a good plan, The quick ratio is a bit of a sales pitch.
68-76 Boxes are listed at between 3.3 to 4 turns. Some are 3-3.25. They used the 4 as a reference to stock. No big deal.
1977 and up are listed at 3.4 turns

Notice Brothers says "Rebuilt OE". Theirs is just a standard rebuilt box. Thisis the price I see now? No mention of "quick" ratio.

Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn