I think your 18"s need to go for at least $200 less than 19" stocks. I sold my 19"s for $2k shipped. $1800 shipped should a fair price value to market conditions. you won't sell for that price here in this site, maybe try ebay for your asking price. Just an honest opinion. Good luck none of the less.
2012 1M / Cobb Custom Map Tune / AA FMIC / Agency Power Charge Pipe & BOV / Agency Power Downpipes & Mid Pipe / Custom Race Open Exhaust / Clutchmasters FX300 Racing Clutch / AFE Dual Intake System / H&R Coilovers / H&R Spacers / CDV Delete / Black Grills / CF Performance Spoiler & Mirrors / Sprint Booster / Feuer Orange Calipers