I think Tom and Walker will be the starters for the year at OT, but I'm not fully sure on which side, as it seems like they're open to making a switch there.
So I'm guessing the Week 1 starting OL lineup will be
Tom, Banks, Jenkins, Rhyan, Walker
And Belton replaces Rhyan during the season.
Depth Chart
I'm going to make the depth chart with Belton as the RG starter, just because it's cleaner that way (instead of guessing who would be top RT backup between Morgan and Belton)
LT: Tom, Morgan
LG: Banks, Morgan
OC: Jenkins, Rhyan
RG: Belton, Rhyan
RT: Walker, Morgan
So if everyone is healthy, then your 8 OL on the game day roster will be Tom, Banks, Jenkins, Rhyan, Walker, Morgan, Belton and one more, based whomever looks best that week, or backup to the starter who's most banged up going into the game.