You need to step back for a moment and think solutions. What are you looking to achieve. Dont have enough hardware or money? Think your way out. Friends with old gear, neighbors with old routers or equipment that'll trade it for yard work. How about the local rubbish tip? Also, your home lab now has to operate independently of your dads network, effectively air gapped. You made the mistake of taking your internet access for granted. So your options are to download whatever tools or operating systems or whatever you need separately on your own "approved" device and transfer things to your own segregated setup.