I'm probably not going to bother with the raid related events too much. Might squeeze in a few more Lakorias or Keaghans, but I'm a really lazy person when it comes to raiding so I doubt that I'll have much time for that. The only things I really want are the AP and the quality booster, maybe the enhancement coupon/runes if I can make 150m-200m in the next week.
Also I'm going to yell at you for planning for Lv. 80 armor because you can buy 3 to 4 Lv. 80 weapons for the same price as a full Lv. 80 armor set (assuming Krakens at 400m and Lakorias at 200m). And you should get the weapon before the armor anyways so that's 4 to 5 weapons versus a weapon and an armor set.
It should take about 5-6 weapons on average to make a +12. Not using AP restores, blowing up 4 80s gives you another 8 fangs (so another weapon, which upon blowing up grants you yet another attempt). So provided the RNG isn't feeling particularly mean to you - the investment for a full 80 set would be about the same as the investment for a +12.
http://vindictusdb.com/item-comparer?i=s2_pirate_evy_hand.0.0.0.0:s2_pirate_evy_foot.0.0.0.0:s2_pirate_evy_head.0.0.0.0:s2_pirate_evy_lower.0.0.0.0:s2_pirate_evy_upper.0.0.0.0;wonderland_head.0.3.0.0:wonderland_upper.0.3.0.0:wonderland_lower.0.3.0.0:wonderland_hand.0.3.0.0:wonderland_foot.0.3.0.0
Now comparing Classic Black Pearl to 3* Wonderland, you're mainly in it for not dying as fast - but you're hardly going positive in the Int department which is actually a really big deal. Also Classic Black Pearl has the issue that the shoes are Heavy, which means -1 WB/E on your set which means you're losing M.Atk by switching from 3* Wonderland to CBP.
And you'll still be no means tanky with the CBP (I'd wager you'd get to 5k-6k Def max, which isn't much help against most raids). So it's not really a good trade in the slightest and you should stick to using 3* Wonderland.
Also the coupons are 99% going to be time limited, meaning you'll have to plan for what you have. This just gives me reason to rush my Peacock purchase a bit.