You say you are new, but you are giving a UM stat build.
If you really are new and not terribly rich, I'd strongly suggest starting a HM toon instead. UM toons are expensive.
That said, any gear that you build for 1-15 PvP can be transferred to a UM toon if you want to upgrade.
At first you are not going to be able to do much in the way of damage.
My suggestion would be to get all the debuff skills you can and just try to be as big a nuisance as possible
Then, when you can get a bit more money, slowly upgrade your gear.
Don't bother with any luck lapis - you won't get enough to make a difference without mortgaging your house.
Linking a single level 6 shrewd into your gloves would bring your dex up to around 70, which would be adequate (100 would be better, but that's quite a bit harder).
For the rest, just pile in as much strength as you can.
Putting enchantments on your bow is a must in order to do any real damage - but at over 1B per enchantment for a successful
enchant that can be extremely expensive. Especially as the chances of success go down rapidly after the 3rd enchant.
After level 6 it isn't really feasible to enchant it yourself so you would need to get GM enchants - which are very