This is an interesting concept for a GB, IMHO.
Some other questions come to me if this GB is to be used as a tutorial, of sorts: will AM products be allowed? Scratchbuilding of extra features?
If for those just getting back, I might move towards an OOB rule. However, if it is decided that it is worthwhile to have some "exemplars" of what can be done with the selected kit, maybe some latitude should be considered so beginners can see what their skills can aspire to?
At the moment, I'm agnostic on these issues, just putting some items up for discussion.
Flynavy1958