1959 Apache rear cab floor support???

[CJ_Chevy]

hey guys,

we are rebuilding the cab on a 59 apache 3100 and it is heavily rotted. we are replacing all of the step components, inner and outer cab corners, as well as everything in the lower front. we found some rot on the back of the cab floor and after we removed it, we noticed that the rear cab floor support is pretty much rotted away. we have looked at most of the parts vendors and they only have the 1st series one. we are replacing the cross member support that spans the width of the cab that this welds to, but we need the part that goes on top of the grommet and supports the rear cab. it looks fairly complicated and im not sure if it can be fabricated.

any advice would be appreciated.