I can confirm: We are only producing Phase 4 and 5 so we can use our F7 tooling as a base. Earlier phases require completely new tools, too expensive for a short run. We will update the sides of the Loco to be accurate to these phases.
Please provide me a picture of the GTW you think is correct for these Phases of F3s. I am no expert in GTW. I will then post it on our web site.
Scott - China