Okay I'm going to be busy most of the day but I was up early and got a few more holes drilled and then put it all back together to check out everything.
I'll still have to take this section apart several more times before I'll have it to my liking.
You will have to look close to see most of the changes the large holes that aren't round were enlarged and small holes were drilled in where there was dead space.
Have a look,
Bruce