Exercise Equipment- NordicTrack Skier & a rowing type Machine

I have two pieces of exercise equipment that do to my physical condition I had to replace with a more suitable unit. I would like to sell both of these pieces. I selected $400 as a combined price. I would sell separately and for a reasonable offer/price. The new price on the pieces are as follows: NordicTrack skier $775.00 The Rowing type unit (I really liked this one) $425. Sit-ups neck support unit asking $15.