ARCHER - What to do when tier 4?

[Sharky]

Hello all,
I'm very nearly level 39, and consequently, nearly tier 4 (Sniper). I'm at a loss as to what to do then?

If you could please offer me help with the following;
- What gear should I buy?
- What should my target be after I've reached level 39?
- When do I 'upgrade' to Ragnarok servers?

Sorry to seem noobish, it's my first "end game" character. So I'm looking for all the tips and insight I can get.

Thanks,
Sharky