TR2 -> TR3, Spheres, Orbs, what to do?!

Hi, I have a question regarding the transition from TR2 to TR3. I’ve currently collected 42.66 Ouro Orbs; I’m playing F2P without the packs. My first TR was a longer one, so i got Temp 1 + Gem1 / Exo 2 + cell gem + shard gem Upgrade already.

Should I try to push towards 60 Orbs, or does that not make sense? Battery at 452% / 312% / 237h in.

I’m planning to finish the e500 cells first—since I’m close (at e495)—and then pick Sphere 3 as my first choice. The guide says to pick number 2 (LP), but everywhere else I’ve read that Sphere 3 makes more sense. Which is correct?

Otherwise, I’m trying to follow the guide.

Thanks in advance!