I’m getting a 200W SLI/H lamp delivered tomorrow. If anyone has any leads on a ballast for this lamp, please let me know. 

Best of luck, they're like the proverbial hen's teeth 

Over here, a 150W SON choke and a Philips SX72 ignitor are a close match, but they're not ideal. I only know of a couple of people on here with the correct ballasts (for 240V 50Hz anyway) and I haven't so far managed to twist their arms behind their backs hard enough for them to part with them 

I guess I’ll just use a Fulham WH8-120-L wired for 1 lamp F96T12VHO operation. I’m not planning to put this bulb into service, it’s only for demontration purposes. 

That should be ok for short periods.