Hi Rijk,
Welcome back, i am also reading about what your are doing and i am hooping i might learn something from you for my one project.
Personaly i m thinking more in the line of a monocoq construction no pedals, motor in the front wheel an rear spring dempers.
so hey you are not alone
i say "keep op the good work" , for your self and i hope you keep us informed of your progress and result.
there are many people who are more then intrested.
Ton