8 way power seat option cost

[por356c]

Hello - I have been trying to find the option cost of what 8 way power seats for an 04 Boxster S (probably 03 would be good too) would have cost an owner back then. The option codes are 437 & 438. I can find plenty of lists that show all of the options and show some costs, but 437 & 438 option costs always seem to be missing. Maybe someone has a window sticker that might show the costs? For 8 way power seats please - not 12 way please. Any help would be appreciated. Thanks!