Over time you can do it, I'm broke & haven't bought anything new for a long time apart from cheap whiskey & new strings for my guitar.
You'd be surprized how cheap new fork tubes are, it's the only way you can easily install Emulators on a CZ - you gotta have a constant internal bore size in the tubes. YSS PD valves are cheaper than the 'Gold Valves' I believe.
Talk to Mark at Nortwest CZ & Maico.
Cartridge Emulators are worth every cent.
Haha... no spare alloy tanks, sorry. I have thought long & hard about ways to reproduce them but it'll probably never happen, don't be shy of paying too much for a good one as they will only get harder to get.
Gotta run before the Boss shuts me down.