Your biggest problem is gold. I’d advice to try and make money off the TP. It’s not easy, and I can’t tell you what is profitable because it changes every minute of the day. But just keep your eyes on prices of certain materials and see how they change. Then invest in what you think is good.
I wouldn’t worry about the precursor yet, as by the time you have all the other items they’ll have introduced the scavenger hunt (hopefully. Probably in about 1-2 months, but it could be more, we don’t know yet).
Other than that, Dungeons are at the moment one of the most profitable things to do. I’d advise a daily CoF run or two, as it’s the fastest and easiest to pug. Fractals is very profitable too.
Just do the daily every day, by the time you’re not even close to having the amount of gold you need you’ll have enough jugs for the ~1 million karma needed. (Don’t forget to use 50% karma boosters, and 15% guild boost + 5% karma banner when using your karma jugs). The daily will also provide you with the Mystic Coins you need for the Mystic Clovers.
For WvW badges ask if there’s a Mesmer in the Eternal Battlegrounds Jumping Puzzle, because that will provide you with 15 badges per day. Try and check there often. It also helps a lot if you have other characters, because they too can open the chest once a day.
For the Orichalcum mine the Rich orichalcum vein in Southsun Cove every day (it respawns 24 hours after you mined it), again, having alts helps a lot because they too can mine the orichalcum daily.For the crafting disciplines, look up guides to use the least amount of gold to max them to 400.
Skillpoints you’ll get from doing dungeons.Before anything, do Mystic Clovers first as they’ll provide you with other t6 materials that you need (and if you’re really lucky even some Lodestones)Charged lodestones… it’s just a huge grind, I’m sorry. Get these last, as they’re pretty much at their peak in price. Wouldn’t surprise me if anet upped the droprate for these as so many people are complaining about it and anet listens to whiners. (Or you can do daily CoE runs to get charged cores/lodestones)
Also, if you’re gonna buy them, buy Charged Cores instead and convert them to Lodestones, it’ll save A LOT of money (but costs skillpoints, definitely worth it though, like I said, gold is your biggest pitfall in crafting a legendary).That pretty much covers it all I think. Gold is your biggest problem obviously, and there really aren’t many shortcuts unless you play the TP and make a killing somehow, but it’s very hard as there’s a lot of competition.