I dont have dimensions but I'll try to get them.
I understand sound issue, I think final setup and strings are effective in this issue.
This bass has one problem too, when we hit F# on the E string with pizz. suddenly volume decrease and then increase.We cant solve this problem.I will put some pictures and maybe some sound sample If I can
Recently we built 2 other bass too they have nice sounds pizz. and bow as you say.