i did come across a rather amusing server based upon a SPUF thread about taking any TF2 weapon and multiplying it's stats by tenfold.
demoknights with (mostly) one hit kill shields and 425 HP, pyros with absurd amounts of speed and gunboats effectively turning any rocket launcher into a rocket jumper that deals damage.... it's all there, give a few alterations to make sure that classes don't just die with their weapons or can't shoot, etc. etc.
oh, and bonk + atomizer in such a server = legit 'almost noclip'* without need of sv_cheats 1 or even a lucky rtd
however, if this idea doesn't float the boat, you could always make it a part of the trade server :p
*does not mean one can truly fly about. you get 10 extra jumps or something on said server.