By that I mean what if Paizo released some of their Pathfinder material, such as adventures and bestiaries, in a Swords & Wizardry or Labyrinth Lord or OSRIC version?
I think I'd buy some of their adventures to use as sandbox material, and I'd definitely get the bestiaries. I guess the layout would be an issue, the artwork to text ratio would be considerable, and I'd prefer it they had less intense graphic design and layout, although that's even more unlikely than Paizo Swords & Wizardry material.
You could probably fit all three bestiaries in one S&W book.
One issue I have with their adventures, from looking at them, is that they contain soooo muuuuuch exposition, etc. that I find it hard to find the what I consider the juicy "meat" of the adventures. What & Where. Imagine one of their adventure path installments trimmed down to a slim TSR eighties-tween module, that I would buy.