I've also wanted to mod this but the PSDs are no longer available. If anyone can send them to me as well IM me inworld and I'll give you my discord so you can send them. Thank you very much
(EDIT. i have found the working link. it is at https://www.dropbox.com/s/vy2c7tk8clg3g9f/BG-Feline_ModKit.rar?dl=0 )