Yes, after the ceremony buses will pick all guests up from The Suites at Silver tree at 3:30pm to bring them to the cocktail hour/reception, and back at the end of the evening.
There will be someone at the desk available to check guests in until 10:00 pm. (So it will be cutting it close, due to the reception ending at 9:30 and it is about a 15 minute drive). After 10pm, you are still able to check in, but you have to go to a different location down the street to pick up your room key. We suggest you try to check in after the ceremony, or stay two nights.
Yes, there is plenty of parking at the church. After the ceremony, guests may meet at The Suites at Silver Tree for transportation to the reception.