If you have 13 dollars to spare you can get this to start your pulling(biceps, and back) off
Do you have access to amazon? they have over the door bars. I have one like this. You just put it up when you want to use it. Works great. https://www.amazon.com/AmazonBasics-Pull-Upper-Body-Workout/dp/B0718XZD3M/ref=sr_1_8?s=sports-and-fitness&ie=UTF8&qid=1522166292&sr=1-8&keywords=pull+up+bar
You can get a bar for $15 AmazonBasics Pull Up and Upper Body Workout Bar https://www.amazon.com/dp/B0718XZD3M/ref=cm_sw_r_cp_api_vuOtBbESQ3NJ
Are you on /r/gainit yet?