I believe i understand your direction here. You are basically looking to outsource the majority of the non-core, non revenue generating aspect of your business and you're looking for someone that can effectively project manage all many small tasks you have going on that most likely end up consuming a large portion of your time. If you would like to have something done right first time and have the experience of more than just one individual and would like to discuss further on the outsourcing of project management and pay as you go role outsourcing please message me. For lot of the work you mentioned we can perform through our own staff and contractors eliminating the hassle, time and risk factor of freelancer.
In general our rates are around $20/hr, but please remember the way we operate means you will get a lot more productivity from $20/hr compared to having someone working on your behalf chasing up non performers on freelancer all day.
I can also facilitate full time employee solutions that work 100% of their time on your work based in lower cost locations around the world.
Please let me know if you wish to discuss further.