I wouldn't consider putting a third party mod in a WOZECLE (or in a Silver WOZ) unless the mod is top notch quality aesthetically and unless it dovetails with the original intent and ambience of the game perfectly. An $8000 NIB WOZECLE (and this price is likely to go higher when the remaining WOZECLE's are delivered) would tolerate nothing less. I'd give first priority to any mod that's done by the original artist, and I agree with Texas Stargazer that anything else would be a downgrade and bastardize the game.
In the case I can't afford the proper mods, I'd prefer not to install any mods at all so the game could be modded properly by the new owner if I ever decide to sell it (without hassles).