inspiron 3020 Upgrading psu and graphics card for blender

Hello, i've been researching how to upgrade my dell inspiron 3020 graphics card. I recently bought it without any gpu and now im looking to put one in. i have 13th Gen i7-13700 and 180watt psu. I would like to upgrade to the rtx 3060 which is the max gpu option when purchasing this pc but the psu in my pc wouldnt be able to handle it, nvidia says it needs 550w. would it be possible to purchase a small psu of say 650w and this https://www.moddiy.com/products/PSU-Main-Power-24-Pin-to-8-Pin-Adapter-Cable-30cm-for-Dell-OptiPlex-9020.html 24to8 pin adapter, would that be safe. or how about this, https://www.ebay.co.uk/itm/186183591103?_trkparms=amclksrc%3DITM%26aid%3D777008%26algo%3DPERSONAL.TOPIC%26ao%3D1%26asc%3D20230823115209%26meid%3D4d95ac1007854ef9a6ec450ab2ae6cf0%26pid%3D101800%26rk%3D1%26rkt%3D1%26itm%3D186183591103%26pmt%3D0%26noa%3D1%26pg%3D4375194%26algv%3DRecentlyViewedItemsV2SignedOut%26brand%3DUnbranded&_trksid=p4375194.c101800.m5481&_trkparms=parentrq%3Ab91ca39518e0ab9c81e03685fffe1c46%7Cpageci%3A0244e8b9-f4f1-11ee-8a2e-ded427c4ea16%7Ciid%3A1%7Cvlpname%3Avlp_homepage . any help would be appreciated greatly.