Help ID Older API Climber

[CVFD931]

*I hope this is the right section to post this, if not would a Mod please move this to the right section?*

Hi everyone,
I just got this older API climber in trade and wanted to ID the model and maybe see about some upgrades or new parts.
It has V-shaped pieces instead of chains, but seems to work great, but I am a beginner and not that fond of heights, so I have/will be practicing climbing up.down and turning around to sit.
Not the best pictures, but the sun wasn't right, if need be, I'll take some more.

Thanks for any help,
Kevin