TOPIC:

Looking to manufacture some kind of custom Fox chassis, does anyone have any kind of measurements or diagrams to produce something?

Hi and welcome to Tamiyabase.
Have you had a look in the Model Database for measurements?
The vintage Fox: tamiyabase.com/...8051#dim-s
The reissue NovaFox: tamiyabase.com/...8577#dim-s

Those numbers will be helpful thanks, looking for a pattern that shows screwholes etc to maybe fabricate something in aluminium which I can do at work.