Hi Blood, greetings to North Wales.
Do you have the Ilford booklets on developing your first film and making copies? They're hands-on, concise and complete, including equipment.
If not, probably available on Ilford's site. Otherwise, send me a PM and I'll be happy to send you PDF's.
Re Changing bag: A dark box (p.ex. those used with mini labs) or something that provides a wide unobstructed space are _so much better_ to use compared to ordinary changing bags, notably when you want to handle 120-film. Wish you luck on ebay etc.
Reels for beginners: For 35mm almost anything is fine, but beware of really old plastic reels, can be a pain! For 120-film, the (Spanish) AP-reels with with wide in-guides are a god-sent. It's worth every penny to invest in new or near new ones (btw, the AP-reels are also the cheapest ones). Personally, I like steel reels - however, to start with, the AP-reels are much easier especially for 120!
Good luck and good light!