Seeing you're a guild hansel, I would say build Unkari Ice Trees or just go with some SDTs to raise that defense of yours. You don't have to take my ideas, but it's just an option.
As you're a gh, you should find a rough idea of what you want your stats like before you start building random things. If you want to be a super awesome hansel, I'd save up for a mass conversation of SoS in LL, Vols in HL and the spy building for HF, all at once. Oh and swap your t4 for a HF troop building too (of course)
If for plunder go for attack buildings. After you got more attack buildings you plunder goes up. But have spy buildings it seems to go down. Hf is a good conversion starter. I was a gh too, then started to go hybrid using attack buildings on hf. Now converting guilds to vol on hl. Anyways. Good luck