Welcome, Roger. This is surely an interesting topic, though I’m not confident that I understand your technical proposal right away. Maybe you’d like to illucidate by one or two sketches? I myself, though being a type and font man mainly, have some experience with hand work in a similar field (attached: the mould made for a bronze cast).
Two major points come to my mind. 1st, work out the lc shape first and lets then turn to the capital in a second step. 2nd, a key question may be, on which glyphic model of the existing and conventional v- or w-glyphs the new form shall be based on. this was my initial take on this, a couple of months ago: