Technical writing - Financial Reporting

Small publishing company seeks technically qualified accountant to re-write a chapter on Financial Instruments with reference to latest FRS pronouncements (existing one is out of date). This chapter is for publication in a book whose audience is fellow professionals (i.e., not for students). Editorial help and guidance will be given. Applicant need not have any particular formal qualifications -- just a thorough technical knowledge of the subject (though realistically will be a qualified accountant or student within striking distance of qualifying!). This is an ongoing project that could lead to other similar assignments. Am flexible as to terms of project; prefer a fixed fee but would consider an hourly basis if necessary. Please ask for more details. Will need to satisfy ourselves that you have the appropriate knowledge before accepting your bid.