You will have many members here selling LTI at cost (with zero VAT, not like us in Europe) that are good tokens for upgrades, i can suggest the following :Hopefully soon, I want to get a ship upgrade but i'm waiting for a 10/5/LTI insurance policy.
@Phantomoftruth https://testsquadron.com/threads/hangar-queens-and-party-favors-wts.15243/ who has X1 baseline or Nox Kue LTI, good tokens @ 40$ (Nox is sold at 40 there but RSI value is 45 now)
@DirectorGunner https://testsquadron.com/threads/original-lti-ships-and-ground-vehicles-for-testies.9423/ also has X1 baseline @40$
That will come with PayPal fees in addition. Both are reliable sellers, i have done business with both recently, and they have been around for some time !
Or you can wait for the next concept sale, you could get LTI warbond, but the concept price could be higher than the ship you want to upgrade to, will depend on the ship they will release later, so with a 40$ token you cover pretty much everything.