My $.02; Great experience with Evans coolant. It's a very common coolant type for stationary engine use; no corrosion and no pressure among the advantages. Initial Cost is the big problem, then it's not common and hard to find most anywhere if you lose some while repairs or upgrades are being done. Just ONCE add water to get out of an emergency in the boonies, and it screws the whole idea. More money.
I used brass plumbing fittings from 'hd' hardware, tees and to eliminate the quick connect fitting. Welcome aboard. ...SO many mods and upgrades. 'Bullet proof' is almost possible, depending on the bullet and weapon.
Love our Burbs, this is our 3rd.