My inclination is to go with something like the Daline enclosure. Coincidentally, I found the original Daline magazine articles and designs last night whilst going through some old papers.
The Paraline was the predecessor of the Daline. I still have the Dalines (B110, T15 and Coles 401G), unfortunately, I sold the Paralines many decades ago, wish I still had them.
I suspect that the Paralines might be a better fit for your drive units.