Westy cab bunk install help

Hi all. Going to install a westy cab bunk in my van. Was hoping some one might be able to measure the height of their bunk brackets from the top osbthe dash up the a pillar and from the wheel arch up the b pillar

Thanks

 

you need to work it out using the lenght of the bunk .... as they vary slightly

 

Yes just wanted confirmation make sure I'm in the correct area.