To be fair, the case is from Ebay. It's available in several sizes and it comes completely apart in 6 separate aluminum pieces. I just drilled some holes and stuffed everything in. The IN-4 tubes work quite well, but their quality control was poor and as a result not all of the digits are straight up and down when looking at them.
It's still got some issues I need to take care of, though. Bad ground on 5 of the transistors so half the numbers in the minutes tube don't light.
SV1063 10"x3"x6" Full Aluminum Project Enclosure Instrument Case Electronic Box
This company has several other styles and sizes that remind me of old Heathkit equipment. They also have a handy set of holes at the top toward one end that works great for dissipating heat from the tubes.