Where should I buy VINTAGE juicy tracksuits???

Ok sooo I was telling my mom about a cute vintage Juicy tracksuit and I told her the price range and she told me I have enough money I should buy it my self. She also said we could stop buy Jc Pennys for some but they don’t have the cute vintage ones!!! Does anyone know where I can’t get some?!?? My mom dosen't like stores like Etsy, Aliexpress, or EBay but that might be our only choice!!!

I rly hope I don’t sound stuck up or spoiled in this lol I’m fine buying some with my own money!!! I just have these cute Juicy slippers and I wanna match with them!!!!

Byeee- juicyc0re