You don’t need any equipment, it just helps :)
In the end you can stretch rather than hang. Currently I stretch for 1-2 20-30 min sessions daily stopping periodicaly to regain bloodflow. The main disadvantage of this when compared to hanging is its damn tiring. I stretch down whilst sitting on the edge of a chair and also with penis pulled around to the back between the cheeks (also while sitting).
I also jelq for 1-2 x 15 min sessions per day. I go for intensity rather than length of session.
I’ve gained 3/4” EL in last 2 months with a 5 on 2 off routine, stretching in the morning and jelqing in the evening and sometime wrapping during the day.
If you want speedy gains then invest in a Bib and maybe a Powerjelq (I have one which I use occassionaly but it doesn’t replace jelqing by hand). For myself if I can grow at this rate (or a little slower) I’m happy.
All you really need is baby oil or lard or whatever you have available but I still ordered a bib hanger cause my arms are getting way too muscular.