Recommendations for Soldier armor
Craft exotics if you have the gold, use dungeon tokens if you like dungeons. Runes can be replaced by simply overwriting them with the ones you want to use.
WvW gear and Orrian Karma gear should be a last resort since neither can be salvaged to reclaim your runes should you ever desire to do so. The exception would be if you plan to use Melandru runes, nearly the entire heavy Soldier’s set comes with free Melandru runes and that can save you a lot of gold.
The preset runes are almost always bad so you’ll want to change them out regardless. For a Soldier’s dungeon set your only options would be from “Ascalonian Catacombs” or “Sorrows Embrace”. Acquiring the AC set would be the easiest/fastest, but in my opinion its super plain/ugly. If you already plan on transmuting it then it shouldn’t be a problem.
Don’t use karma or wvw tokens because you can’t salvage those, just do dungeons for tokens and with the gold earned u can buy more pieces