Strange request.

You want a mint shell but then you are putting a cage in it suggesting it's for a track car?
It'll only be mint on the day you buy it.

You don't want the engine but want all the wiring in it so it sounds like you are going to fit another RS engine.
If not then unless you are putting another transverse engine in it, maybe a 522 Zetec, you'll be cutting the shell.

The only car that would fit your request would be a stolen recovered undamaged partly stripped rolling shell, they'll be next to the rocking horse sh*t and in front of the flock of flying pigs.

The only way you'll get what you're after is to buy a mint complete RS and strip out and sell what you don't need.

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