Problem listing items for sale


I have a complete set of Harman Kardon Citation I,II,III-X  untouched kits(4) for sale,New in their boxes. I would like to sell them as a complete setup. However, I find it difficult to list them  on Audiogon as a unit.
BTW I worked for HK from 1958 through 1964. First as tech trouble shooter on the production test line and as I progressed through college ended up in the engineering lab working on the Citation line.
These kits are from my personal collection and therefore have provenance.
nickbalsamo
@nickbalsamo    If you write a  ticket to support@audiogon.com,  ATTN: Tammy, I can help you with your ad. 
Thanks Tammy,
What is the procedure to get on that site to write a ticket. I tried to put that address in my browser and it brought me to your home site of audiogon.com. I would like to offer this equipment as a package.
Thanks