Help to make decent Pirate.

I'd say gamble with it. Wait until those gold chests are a little cheaper, and open a few of those. 100k nx will only buy you about 400m worth of equips, which won't even be enough to become average. I say spend 30k on chests, 30k on gach, and the rest of it for a pet + shop. All you really need is one or two really good items from either one, then a combination of decent things.

Or you can gacha all the way and scroll +STR Equips for yourself....