On our Product Documentation page, we have "Sand-filled Solid CAD Model Downloads"; the SV-COM-PANEL models there have the same dimensions as the SV-AP-PANEL and SV-KNOB-PANEL. The SV-KNOB-PANEL does not have the D15 connector.
We do not currently have a CAD model for the SV-XPNDR-261/262, though there is a dimensional drawing for it in our SkyView System Installation Guide, Page 11-2 (tray) and 11-3 (unit).
Is it possible to get cad models for the transponder and the two new panel modules which save me tons of time modeling in solid edge .