HI there,
I am bit confused with project posted, do you want to develop a site from scratch, I can do everything which have been mentioned in project description, I have 6+ exp in joomla and 5+ in redshop, I am working with it since redshop1.0, I am surly can help make it your site fully function, kunena and k2 are very common component, person who worked for 6+ yrs in joomla, kunena and k2 is not new, you will find many person who can work with k2 and kunena but redshop is something not every one has done, So I can help you with all three components, and Redshop is bit big extension, And I can configure your shop fast compare to others.
Thank you.
I am looking forward to working with you.