If you are on facebook you should look up the group rotary to airline group. It is a much better forum for the questions you are looking to get answered and there will be a bunch of peers going through the same transition that can help you along the way. The 175 should be the aircraft you try for so you dont spend as much time on reserve and can build your hours quicker. As far as Coast is concerned word lately coming out of there is that they are moving people along pretty quick in about 4 months. As far as your hours are concerned you wont need a restricted ATP as you will have over 1500 when you finish at Coast.