What VIP weapon to buy?

So recently I spent a bit more money and I'm currently at 121k zp. I'm not sure what VIP weapon I should buy with it. Currently deciding between DE OB, Kukri VIP, and RPK ID. I'm sort of leaning towards the RPK right now because it's the cheapest and I can try the rest of the zp on a crate weapon like kukri gold or DE scope. At the same time though, I really want a permanent pistol or melee. xD. I have a desert eagle but I'm not content with it (spent probably 300k GP trying to win DE camo). With a DE OB or kukri VIP it would satisfy my desire for either a permanent good pistol or melee. But at the same time the prospect of an RPK ID (along with spending the excess zp on black market crates and possibly winning a permanent pistol or melee) is tempting. Any suggestions?

PS -Don't tell me not to buy VIP weapons