Fitting leather in a classic se ?

[biffa75]

I know this has been asked many times before without doubt. Ive done a search but still unsure.

My wife's 75 classic se (2003) has ash grey cloth seats. The driver's seat foam has disintegrated and is falling out from underneath.

We've seen a nice leather interior that has come from a 1999 year 75. I've had a quick look under the driver's seat for the electric seat plugs but couldn't find any other plugs other than the ones for the airbags.

I've read cars with cloth seats can sometimes have the electric wiring plugs under the carpet,
but where?

The 1999 leather seats are electric and also have memory function. If it turns out we do have the electric plugs to operate the seats electrically, will the memory function work with the low line ipk ?

If we don't have the electric plugs, can the runners simply be swapped over, using the manual seat adjusters on the leather seats?

Thanks
Rob