Hello, I am bidding for the "managing and maintenance" part of your proposal :)
I have 6+ years of experience in web development, the last 4 of those - as a professional freelancer. WordPress is my CMS of choice, I know it inside and out.
I am not bidding for the developer positions, because I have other project for January and February next year and I won't be able to give you my full attention during this period.
However, I believe I would do a fantastic job managing your clients websites - I imagine this would be more of a 4 hours/day job which can fit in my schedule perfectly :) And of course, if you are happy with my work, I'd be glad to do some website building as well.
That's all for now, so if you have any questions - I am here to talk and discuss further.
Best regards,
Pavel