The Monk Temple

[Allyrion]

So is the Tabard the best first piece to buy, or is it better saving for the weathered weapon?

The Tabard is BiS as far as most can tell, so it's a good investment anyway. The Weathered Glanzfaust is worth getting over it but only if you have the Unidentified Allagan Tomestone. If you buy the Tabard now, you can give yourself 3 weeks to get that tomestone.