As usual the answer is "it depends".
Are you wanting to stay within NBRSA/IBS VFS and UBR custom class rules for the stock and weight on the 30 BR? You say "local matches", but don't mention the rules.
If it was me, I'd build a rifle within the NBRSA/IBS VFS rules. That way, if you want to sell it, you have a market rather than an orphan that you have to sell component by component.
So, that would be a 13.5 lb rifle with a HV contour barrel with a stock that has a forearm not wider than 3" and has 5 degrees of slope in the bottom of the buttstock.
You then come down to the choice of the scope. Your two basic choices are the Leupold LCS/March kind of weight and the Nightforce BR kind of weight. Either will work. Just have to be planned for.
Just talk to whoever is going to build the rifle and tell them what you want to do. I'd personally avoid the BAT SV. It's tiny and you don't need it for a 13.5 lb rifle. Maybe a DS.
Here is a quick laundry list:
1. BAT DS action RB/LP/RE
2. 17.5 or 18 twist HV or Max HV contour barrel. Pick your poison on the make. Talk to your gunsmith about it.
3. Whatever stock Bill recommends to make rules and weight. Maybe "Mini Tracker".
4. Leupold LCS 45 or Nightforce BR scope. Huge difference in weight. Must be planned for.
5. Jewel BR trigger.
6. Rings, mounts, butt plate and trigger guard.
7. Harrell's FL die that your smith recommends for your 30 BR chamber.
8. Seater die. I use Wilson inline dies cut with my chamber reamer. If you don't have one, you'll need an arbor press to use the inline die.
9. Hand priming tool. I have a K&M and like it a lot. Several other companies make them.
10. 30 BR brass made up already. Several people do this for you. I highly recommend starting that way.
11. H4198, Norma 200, VV N130, Reloader 7, Benchmark or 322. 4198 is most common.
12. Small rifle primers. CCI, Winchester, Federal. All work. Some better for different folks.
13. Bullets in the 110-118 grain range. Some folks have different experience, but for me, the lower number ogives have been more forgiving of my tuning incompetence. I saw on here yesterday EPS Bullets had some 30s for sale.
I don't know what you already have in terms of gear, but I'll add some stuff here in case:
1. Front rest. Lots of options. Two basic kinds are windage rests and joystick/coaxial rests. After shooting a joystick, I strongly prefer them. YMMV.
2. Rear bag. Lots of options and opinions. I suggest starting with something like the Edgewood Mini Gator or Protecktor. Mid ears with 3/8's gap between the ears. Leather, cordura, slick fabric, your choice. You might also look up the guy on benchrest central classifies that is selling bags with slick fabric sewn on.
3. You might need a couple-3 pillow bags for your elbow, shooting hand, joystick hand, etc.
4. You will need a towel or other bench top mat for your nice, expensive brass to eject on. I use a regular large bath towel but am making a "Billy Towel".
Whew! That's enough typing. Got to get to work.
