Hmmm okies. Should I try gearing up a lot between now and then then? I have mostly stuff from an old character I retired from years ago Dx lol
It's really up to you. The more efficient way is to just race to 99 and let your Trusts do all the heavy lifting, but I always find that to be boring. The last 10 levels are lightning-fast either way.
If you do want equipment, I recommend the Lv.78 Aurore, Perle, or Teal armor from Abyssea. It can be exchanged through the Auction House, or purchased using just a few Cruor from one of the starting areas. You can even upgrade it to Lv.90 by doing some Unity Notorious Monsters if you want. Those should last you until the Lv.119 Gorney +1, Shneddick +1, or Weatherspoon +1 equipment from Vesca.