SEO writer with Content Composer skills

I am a webmaster (based in the UK) with quite a few clients in need of 500-600 word articles. These articles are primarily for submission to Article Directories and an understanding of tuning articles for SEO is paramount. I pay via Paypal and am happy to pay in stages for your security. I am looking for a freelance writer who is skilled in using Content Composer vs 3.0 and will expect the articles to be more than 40% different when checked against each other, as well as against the master version. A writer familiar with using the advanced custom merge fields in the CC Transformer should find that very achievable. I will require the articles to be supplied in .ccf format for checking before I submit them to article directories. AN EXAMPLE OF A FORMER CLIENT'S BRIEF, KEYWORDS USED AND THE RESULTANT SPUN ARTICLES MUST BE PROVIDED. Articles must be original content written by you and use good grammar and spelling. Copyright must pass to me on acceptance of the work and not be offered elsewhere. Content will be checked via Copyscape and the Content Composer plagiarism checker. I have a need for: 20 articles in the houseware sector: specifically Cookware, Chef’s Knives, Kitchen Electricals, Tableware. 20 articles in the lingerie sector: specifically Babydolls, Basques & Bustiers, Bridal Lingerie, Briefs and thongs, Chemises, Corsets, Fantasy Uniforms, Matching lingerie sets, Nightwear, Plus Size Lingerie, Teddies & Bodysuits. 20 articles in the home improvement/double glazing sector: specifically Home improvement, Replacement windows, Conservatories, French doors, Sliding patio doors, pvc double glazing The above would be followed by another 60 articles about a month later. A list of primary keyword phrases plus theme related phrases and synonyms will be provided, as well as an indication of the tone of the article subject (friendly/conversational, academic, informative, business, how-tos/tips, etc). One primary keyword phrase will be used per article while the contextually related theme phrases can be sprinkled in as appropriate. Target keyword density is for each phrase to appear 3-4 times per article, while appearing natural to the reader. I should emphasise that I am looking for a long-term business relationship and will have a lot of work of a similar nature. I invite proposals from experienced professionals – ONLY those with Content Composer skills.