About the event Currency (Gear crossover event)

#1

Should I be farming the event currency’s? And should I go straight for copy’s of sol or go for the MolGora seeds, bookmarks, Gigas and Ice stuff (my team atm is just full Ice) ?

#2

Absolutely go for every Sol copy you can get. Sol is a very strong character for PVE content with his high base stats and built-in joker effect.
After you get Sol your priorities should probably be mola gora and bookmarks. The other stuff you don’t absolutely need, but if you’re farming the side story quests/reputation anyway just buy them.