I believe that shipping should be calculated at checkout based on all items and not included in price, for my 2 cents.
Otherwise, I checked out your site and have thoughts on that as well. I tried searching for 1000 uF electrolytic capacitor, 1000 uF capacitor and got resistors as result ( I need to order some 1000 uF caps). Also, from a website perspective, you never want to put your phone number, 954) 300-905, in plain text because you will get inundated with scams and cold sales calls. The phone number should be a bitmap or jpeg. Robots are looking for phone numbers by the millions. Also, if you intend to sell worldwide, you need to add your country code to phone number (such as 1-(954) 300-905).
Just my 2 cents...