Storing racing champions in something other than hot wheels 100 car case

Hello.

I just acquired a large sum of NASCAR 1/64 diecast cars. The majority of them are Racing Champions brand. I need a new strategy to store them. I bought one of the new Hot Wheels 100 car cases, which the NASCAR cars are literally 1 millimeter too long for the slots and won’t allow closure of the case.

Does anyone know of a certain model of tackle box or hardware storage case that fits these brand of cars, with preferably 100 or so slots per case?

Thanks!