I genuinely wish you luck Elton. I couldn't sell my CK's for love nor money start of the year, with tyres and a healthy discount. There are certain websites selling them brand new for next to nothing. Well, a shed load cheaper than both you and I paid anyhoos.
I've been searching for a set of the original styley BE alloys in 18 for months now, the old RS4 style in graphite. I can't find any for sale and no one wants to part. I want a set back for either winters or like you, for trading in when a deal or new car appears.
So I'll not hijack and ask folk to help me in my search, but instead try and help and say that anyone taking these will not be disapponted. Rarer than the CH and in the best colour in anthracite. So help the man and yourself out, flash the cash.