Are rolleidosop and heidoscop lens/shutter assemblies interchangeable?

[mferrarini]

i have a non functioning rolleidoscop that is unrepairable due to missing and broken parts in the focusing and shutter assembly. Would it be feasible to acquire a working heidoscop of the same format and vintage and swap out the lens/shutter assembly? They appear to be the same camera, other than that the former accepts rollfilm and the latter is a plate camera. i've been unable to find much info or diagrams of these units. Would appreciate some assistance.