internet domain name portfolio sales and development managment

With a portfolio of hundreds of domain names, some of which are for sale as is, and others are under development as websites, we are seeking a cloud based system for management of sales and development. See domainpunch.com for a non cloud based database which partially covers requirements. A good CRM system would pivot on the product, or "property"(the domain, if you will)..We are seasoned IT pros looking to partner in helping create this app, along with possibilty of offering it to others in domain sales industry...(and industry it is!)