OK, the way I've built it... $600 with 18lbs wing; $435 with 25lbs wing
DGX, plus extras to make it similar... $380 (but pure hog harness, without QR for my shoulder)
So.. 18lbs vs 25lbs... that's the rub...
You'll notice the extra $200 in your pocket way before you notice the 7 lbs difference in wing volume.