I want to mine RAVENCOIN but I don’t know what gpu I should buy

I want to start mining with only 1 MSI GeForce GTX 1660 Super 6GB Gaming X. I need some help with the "mining rig". I want to buy an Intel celeron g5905 with motherboard asrock b460m pro 4 and 8 GB ram. But I don't know what psu I should buy.Also I need some help with the gpu. Is 1660 super profitable or I should buy a better gpu?I want a good psu,gpu and some tips for the start. THANK YOU