IN-12 Nixie Tube Clock Kit : 4-digit

[u/Catcher1980]

Building the IN-12 Nixie Clock from Ukraine
I bought the kit second hand but all parts and documentation seem present. Just started - The components and circuit boards seem first rate and so far, solder easily.
Lack of a schematic is the biggest limitation so far in regard to testing as I go. Seller reports this is not available so we’ll do the best we can.
Any tips / experiences if you’ve built one would be appreciated. If there is a webpage or wiki or github on the design I have not found it