I have just completed a historical fiction novel called the Apology. It starts in 16th century Flanders then moves across to medieval England. It was definitely suspense, action and romance and ended in 2012 with a class action against the catholic church so also quite controversial. You can view the book on amazon or Kindle, just search The Apology by Chris Kirby-Ryan
I wrote this book in a similar style to what you are suggesting, for a man who had an idea and had done a lot of the research, however there was so much more to be done. when you are writing a novel such as this you need to find out what the people wore, what they ate, how they spoke etc - so all of this research plus a lot more in-depth research was done by me.
I really enjoyed writing this book and loved doing the research. It is about to be published by Xlibris and the reviews we have had to date have been fantastic.
I have been writing for over 30 years and can certainly dedicate 10 hours a week to your book which would produce 5,000 words. I can also do more if you want it done quicker.
I would love to help you with this book.