Upper Control Arm Repair

So I’m wrapping up the install of the RF control arm I got and I noticed two potential issues.

1. When it came time to put the bolts thru the back end of the wishbone , I pop thru and get the plates lined up. One side has a washer attached to it and the other side is smooth. Does it matter which side goes in first?
2. When I tried to run the bolt thru the bracket that attaches the ball joint it wouldn’t fit. I messed up the threading of the old bolt trying to slam it in and the new one looks slightly bigger. Should I just bore the hole out?
3. So that’s where I’m at for now. Any advice would be appreciated. Thanks!