Logo design for small business

Our client needs a simple but effective logo design creating for use on printed materials and a website. We need a fixed price for creating at least 6 design options, plus any amendments or changes the client may want until 100% happy. Our client (a small 1 man business) who is a highly skilled and experienced watch repairer and reseller of high quality brands such as rolex,omega,brietling,cartier,tag-heuer etc the client has not previously used a logo, just his company name. The finished logo needs to be supplied as a pdf and an .ai file (v11 or earlier)