Well, I can tell you don't use either of the Revell models as guidance as they have the mock-up, pre-production, size and shape. The actual ones were smaller. Best idea is to get the David Weeks drawings from RealSpace Models and have at it.

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NAR 79743
NARTrek Silver
I miss being SAM 062

Awaiting First Launch: Too numerous to count
Finishing: Zooch Saturn V; Alway/Nau BioArcas; Estes Expedition; TLP Standard
Repair/Rescue: Cherokee-D (2); Centuri Nike-Smoke; MX-774
On the Bench: 2650;
Dream Stage: 1/39.37 R-7