"infinite weight" being that book also lifted by CM?
Isn't it a book of infinite pages?
Durability? SS' best is probably T&A in the ridiculously high-end stuff, two Celestial-grade bruisers wailing away on him and he survives and has the stamina left to channel the Crunch energies (big bang energies).
Also, there's the fight with UniLord (a skyfather entity at the least) where he was smashed to pieces and atomised and he instantly reformed - repeatedly. Might not be durability, but it gives you an indication of stamina and the ability to take extreme physical attacks.
Personally, I think him trouncing Abomination, Skaar, one-handedly owning Rhino's charge and no-selling various Hulks (who have always been >= Thor with Mjolnir) are sufficient to put him in Superman's bracket. Even Pre-C Superman was rocked by Savage Hulk so, it's pretty impressive.
Surfer's combat speed is no different to his travel speed, as he can both perceive and move that that speed comfortably - he mapped whole star systems whilst flying at many times C.
What are Superman's quantifiable combat speeds? travel speeds?
Also, what's to suggest that Surfer won't just phase through his punches?