Welcome!! You are in the right place!! If you are going to stock LMB and CC I would go with BG and RES. The HBG will not build your forage base like the other two. They reproduce but mostly have male offspring so reproduction will be poor. Most people use them when they want BG but do not want to have to control the population with a predator like the LMB.

For your large gills you will want to have alot of smaller LMB, you'll have to keep the larger LMB caught out because they will eat your larger BG.

The experts will chime in soon on the specifics, but I have learned this much from being here. lol I wished I would have found this play in the beginning like you have. READ READ READ READ...then READ some more and do what the experts say and you'll have an AWESOME pond!