These ideas yes, but these networks already have a concept of message oriented semantics and so there's not much of a need to rebuild most of those protocols. A lot of what Finger, Gopher, et al does is define the application layer semantics to transmit documents over stream oriented protocols.

A lot of the "early internet" protocols would likely pair quite well, especially ones based on UDP.

However, Reticulum has its own active "small web" implementation with NomadNet and the Micron markup.