If you are going to sell fish I would ship and avoid the local selling unless it is through club meetings. Selling locally might initial move some fish but you will quickly run out of buyers. Plus you do not want random people showing up at your house all of the time. If there is a local club use it so at least you somewhat know who the people are. Shipping online is the only way to go to move fish. Keeping rare sa/ca cichlids leads to a small market to begin with so opening it up to the whole US will give you a lot more sales. Shipping is very easy. Everyone acts like its a real pain or hard but I can bag and box fish and drop them off at FedEx in less time than most people would spend wondering around my house asking tons of questions. Plus I just did not want all of those people at my house.
Try selling through a local club. If that does not move enough fish all you really need is an O2 tank, bags, rubberbands, and cooler boxes.