Not having the BP2 myself but I can tell you that you should build the basic kit as stock first then test and listen for a few weeks before adding any upgrades. This is needed to make sure the base kit is fully functional and it also will let you get used to the sound before upgrades so you can appreciate the difference. Then install one of the upgrades for the same 2 reasons and listen for a while, Then add the final upgrade. Trouble shooting will be much easier that way. This will give you plenty of time to study and time for BH to get back from vacation. Just one mans 2 cents worth.