Power to manual seat conversion

[kahlil88]

Got a late model power seat at the junkyard for my 1985 190D, which has manual seats. I'd like to keep it manual and I'm told the bases can be swapped (having some trouble there) but what about the backrest?
Of somewhat lesser importance, I found some W126 leather seats that I want for my W123, however they are electric (with heat). Is there any interchange between W123 and W126 seats or should I be looking in the Euro market?

[kahlil88]

Answered my own questions with the W201 seats and found that the vinyl and cushions will swap but nothing else. Comfort is awesome though! Still curious about the W123/W126 interchange so I can have the nice leather but keep my manual adjustments and not have to wire anything.