First off, congrats on the find. Now, transferring reel-to-reel can be done DIY if you're tech-savvy, but I wouldn't recommend it given the rarity of what you have. There's specialized equipment involved like a reel-to-reel player (obviously) and a high-quality audio interface to capture the audio without loss. Plus, you'll …
New to this subreddit and wow, didn't expect to see 'Celestial Voyagers' right off the bat. Don't have 'Rocket Rangers' but I'm definitely keeping an eye out now. This place is awesome!