For sale Gallien Krueger 2001RBP Preamp

I'm in the process of building a rack system and I purchased this preamp new (3) weeks ago. The amp is still new in the box and comes with cables and footswitch. The preamp has never been used. I've decided that I'd rather go with a tube pre so I'm letting this one go. Selling for $280.00 shipped in the US via UPS Ground. I might be willing to trade the GK pre plus cash for a good high end tube preamp. I'm specifically interested in a Demeter HBP-1, Ampeg SVP-PRO or Aguilar DB680. No other trades considered.