SK-Model has released a Grumman EA-6B Prowler kit in 1:72nd scale, item number SK-Model 2800.
I strongly suspect that it's using the old Hasegawa kit mold.
Not sure if this is the general price, but this outlet http://www.model-making.eu/products/EA-6B-Prowler-18483325.html has them for £5.86!