The best would be using a Sniper, it is the most reliable when against MvP mobs. Champion is also good for MvP, but for me personally, I rather go with Sniper.
I'll share you a build that I use for my MvP Sniper.
Stats ;
Str : 30 ish or more depending on you.
Agi : Enough for Aspd 195.
Vit : Remaining goes to here.
Int : 1
Dex : 300 Max ( Always add Dex before Agi )
Luk : Luk enough for your Crit Rate to be at 101-104
Its best to at least have a knight set on you, if not I suppose what you have will do.
Reasons why, the double slotted equipments would do you good.
+10 Cloak with 2 Chung Ee Card
Shoes with 2 Fox Card
There isn't really a card to put in your headgear but if you must, Vanberks would be good. if you can manage to use 4 vanberks, then you can tweak your Luk to 1.
Shield with Usakoring Card, then again you might not need this, if you are using Composite Bow.
Armor, you can card Double Tao Gunka if you have any. Or no cards at all. Its fine.
If you do not have Fbow, not to worry. Just use a Composite Bow, that'll do fine. Just put 2 Abysmal Knight Cards and 2 Paper Cards in your weapon.
Hope this helps a bit. Its been long since I ever used that build, so I'm quite hazy about it. If anyone wants to add on, go ahead.
Good luck!