Your paint and trim seem odd to me. 822 looks like a blue interior and 955 might be for seafoam green? I don't think they would make that combination would they?
The accesory codes for these years Chevrolet are not published for the general population like they are for Camaros so you have to do some homework to try and figure them out.
Generally something after the paint code is for 2 tone or Vinyl top.
Verne, I know you are not going to post the accesory code for this but what is this paint & trim combination?