Is it easy to replace a bent antenna mast on a Lexus RX300? Does it need special tools? Where to get a reasonably priced replacement antenna mast?

If it is an electric antenna, call Lexus.... They do build mast replacements... and in most cases, they aren't all that expensive.... but then again... it's a Lexus.

If all else fails.... Check Toyota... it's probably the same antenna mast for it's counterpart in the Toyota lineup.... and is probably cheaper too.....

Don't waste your time looking in the aftermarket... They don't exist.... Go to the dealer...