If it isn't too late, I would vote that all the equipment stays in, but if I may ask, if they are to be removed, could the removed assets be made into an "add-on" to the base pack so users can have any and all equipment they would want (as also stated earlier in the thread)? I'm a bit of an equipment hoarder. I've been adding many of the new assets and different liveries of existing equipment from Experimental into Standard so I can have even greater variety. I might be in the minority on that one, but I would really appreciate it if there was some way to keep all the existing equipment or at least the .png files and .dat files available for download and packing in makeobj.
On a side note, I know this isn't prototypical, but if in the game, you're one company, why not have it set up where all equipment corresponds to either player color (I understand that would require a massive graphics re-do...). That or have just one livery for all equipment (I know, heresy!)
Both of those ideas would involve some hefty graphics changes, so I know they wouldn't be practical, but still, they're considerations.