How can I unlock my disabled iPod without itunes

My 4th gen iPod touch is disabled for 25,460,298 minutes and has a broken charging port. It is still on ios 6 or 5 I don’t know but i do know that it charges through the 30 pin port, it just won’t sync media to a computer. iTunes won’t install from the apple site, and I don’t want to install it from a shady website, and I cannot install it from the Microsoft store because I am banned (feel free to ask why). I tried iTunes 12, but I want to download iTunes 10.6.3 so I want to do it without iTunes. What I need help with is

• finding the charging port part for cheap
• unlocking it using a computer with iTunes or not
• installing iTunes 10.6.3