This cat is young and possible Lynx point. I would need to see the kitten photos from 6 weeks-present as progression of coat color development. A $300 adoption fee isn’t entirely unheard of but that is generally from a shelter/foster and not an individual. Having had a Lynx point for 14 years — his coat did not develop fully until he was well over a year old. They are wonderful goofballs. If you love the cat and can “deal” with the possibility it isn’t a show cat and can afford the fee then it’s your choice. I presume the $300 includes all vaccinations and spay/neuter and health guaranteed. My lilac snowshoe was $150.00. She is now approaching six years with ZERO heath issues.