I got offered 600 plus a set of standard Speedline Safaris (the same but 7j not 8j and without the offset) at USC last year by a guy restoring his Escort Cosworth to its original rally state, but I couldn't part with them! Now I'm investing in another car so selling would help towards it!
Not long since I spent 300 on tires for them too, so as for price I want at least 800...I know there rarity and desirability, not seen another full set yet either!
Only a set of 4 mate, sorry!