Very new owner! Would like some help.

Hi all! I've looked into owning Chins for a bit but have had some problems with finding good info. Tuesday I went to a livestock auction to look at some goats and they had two babies up for auction. I couldn't help but get them as I knew they would go for fur if I didnt. Long story short - they are now safe and home with me. I have nothing for them! As of now they are in an old indoor rabbit cage - Saturday im going to the pet shop to get everything I need. Could someone give me a list of what I should get? And cage wise I would like a diy one. Does anyone have plans or ideals?
Thanks