Among their Star Trek offerings through the 1990's, Playmates produced a line of mostly Trek related ships with roughly 1/72 figures called: INNERSPACE. A very nice LEM and Command module showed up in the second series. These (sold separate) had detailed interiors, nicely decorated/painted and the modules connect (as with your SPACEX example). They would go well with your collection and are not expensive when they appear on eBay.
I started to scratch build an Apollo CSM once, but I foolishly chose 1/5th scale! It got so big and heavy that I couldn't easily move it. It now resides, uncompleted in the back of my shed!