P5156139 aluminum crate hemi

I saw it listed in jeg's.....$18,000.00.....they have is listed at 615 hp.....i thought they were advertised at 590 hp.....it showed they were using 6.4 aluminum hemi heads.....are they being advertised anywhere cheaper than $18,000.00.....i was trying to find out the shipping weight.....i saw in one of your ad's the crate was for sale from a sb and they said that it was 40 pounds.....jeg's said they had no idea what the shipping weight was.....but they could find out by calling mopar performance.....if i really wanted to know.....