The market for is250s is a dead market, soo many on car sales as it is. I had a 08 x manual, mint paint with heaps of tasteful mods with 205ks, lexus history etc. Ended up stripping some of the mods and just left coilovers in and is350 brake upgrade. Sold as is for 12k as is to a family member, had trade in offers of under 10k but thats how it is. Given the age of yours low teens would attract alot more buyers.