Do you mean rewrite like edit them? Or like a complete overhaul with pictures and stuff? I don't play RS anymore so I can't give you XP rates or anything for the guides but I can still do some rewriting, just tell me what you're looking for.
Anything you would want to do, really. Preferably a proper rewriting since they haven't been rewritten since like 2012 or something. Still, even if you want to just update them with new training methods, that'd be great. However, I think your layout style > my layout style.
How about I start with one guide and send it over to you and then if you like it I can do more? Like I said, I won't be able to get exact XP numbers by testing myself since I don't play, but I'm sure I can find the numbers somewhere online.
Just got done with some changes to the Agility guide, posted it on the original thread. Let me know if that's along the lines of what you're looking for, or if you'd like something else added.