Hello, I have looked at your project and I am ready to work for you, I have finished one site on Yoothemes Avenue last month and will finish another one. I can create site which you need using Zoo and Widgetkit, which are also Yootheme's products and they will work together as you want. Also I have subscripton on Pro extenstions for Zoo from Zoolanders.com. Also I can give recomendations for best optimized hosting for Joomla, if you have not purchased it yet. PS. If you will purchase hosting recommended by me I can give you 10% discount.
I know that I have no reviews on my profile and it is hard to trust my experience, but this is because I worked for a local clients before. I started work with Joomla for more then 6 years ago, and once I got long term work as IT support in one Company for whom I made site, and this time I have not taken orders but I had much time to learn more about Joomla and have worked with many extensions like Jomsocial, Easysocial for Community portals, for forums Easydiscuss and Kunena, for catalogues Zoo, K2, for Carts Mijoshop, Hikashop and many others like CCk Cobalt with which I can create any kind of site will it be forum, blog, catalog or anything else. From tempaltes I prefer to use Joomla-monster, Joomshaper and Yootheme, and know very good their structure.
So after years of work for that company it was closed for some reasons and now I need to work and freelancer is best solution for me and I hope we can work together. Thanks for attention :