Get 68,000uF, 80V. 67,000 is a weird value and you don't need it. I doubt you could get 75V either though some old stock probably. Digikey, Mouser, Arrow, Newark, Avnet. They all deliver next day or close to it. Don't waste your time with boutique shops. It will cost more and be more hassle than it is worth with no benefit.
https://www.digikey.com/en/products/detail/nichicon/LNR1K683MSE/3929971
You need to measure them and figure out the size first though. You could probably go up to 82,000uF without any problem.
Just did a quick search for you. Pretty nasty stock situation out there now and hefty hefty prices. Good luck.