Well the new retro line they cost silly money like 4 K a set as I spoke to the UK dealer in Recaro. There is a seller on ebay from Poland who will supply and trim a set of LS that look exactly the same and reckons he can sort out the seat bases none electric - at the end of it wont be far off a set of stock Recaro seats and will be none electric- although they will be brand new and don't have to worry about the electrics failing. Also can supply heating for not much extra cost.
Here is the guy in Poland and if you look through the pictures the orange ones are just like the recaro . Any colour or material.
https://www.ebay.co.uk/itm/RECARO-LS-LSb-seats-the-Pair-Leather/264529584394?hash=item3d9731210a:g:kq8AAOSwSK9dyWxf