What contour is that barrel? It looks like your weight is going to be very similar to mine in terms of scope. Trying to figure out how much weight I need to buy in the arca rail / and the back weight spacers to get it to balance right.
For my MDT ACC I ended up buying a full internal and external kit, and ended up only needing 3 weights up front for balance, and removed the rear weight. I don't need to run a 21lb rifle... so I was lightening up my MDT ACC setup down to 19lbs.