40 series seat question

[Builder]

Can someone who owns a 40 series please measure their seat for me? I bought a CAT Challenger and the seat is pretty beat. I thought I would replace it with a Kubota 40 series seat IF it will fit. I'm looking for maximum width (armrest to armrest), maximum height to top of backrest, maximum overall depth of seat and width/depth of the steel mounting base.

Thanks for your help.