Thanks DW!
Kinda looks like the seat is going to work

, might of been room to make it an 1-1.5" wider and maybe an inch or so shorter. The base is sitting about an inch higher than the stock bench in the pics...might lower it a bit to bring the back lower relative to the window, but would like to keep the leg room increase too. Close enough to work either way though. Picked up some gut room too