I have a Giant Cypress Sport Comfort with 700c wheels with flat bars and grip shifters. I was wondering how much work is involved with switching the flat bars for drop bars to give it a cross bike feel to it. I do quite a bit of riding on the road and kinda miss having a drop bar bike, but I also do a lot of riding on the C&O and crushed limestone bike trails. I'm thinking I would need new drop bars and new shifters is there anything else I would need to do?