Slightly late in repoting Zygopatelum. Now what?

[koranke]

I'm a complete novice with orchids. Maybe 16 years ago I bought a Zygopatelum. I didn't know anything about them but loved the flowers and fragrance. I repoted it once after the first year and repoted it a second time, perhaps 10 years ago. It has always seemed happy and would send up flower spikes maybe three times a year. It has, however, started to look pretty bad as it's run out of space with all the old bulbs crowding out space. I've let it go for so long, I don't know what to do now. I broke the pot to get it out and it's all roots. Should I just put it in a slightly larger pot? Should I try to break it up or remove any of the darker looking roots or older bulbs that have no leaves? Here are some pictures. Please don't judge me too harshly.





https://1drv.ms/i/s!AugX580Vx9mLmocN...F_oPw?e=aVPKGC

https://1drv.ms/i/s!AugX580Vx9mLmocM...Oec6Q?e=NNzHNS