I made one from a manual push wheel chair. Its great because you walk/run upright the poles stack upright and it parks great because its 4wd and goes up and down pavements easy. You could even sit on it (just) if you could find someone to push, I did think of entering the annual pram race in it last Aug.
They do folding small powered wheel chairs !
My next proj is a folding elec golf trolley conversion
Gazza dont forget to fit roll over bars for fast cornering- great for a poles rack. perhaps we could start a racing/rallying wfp section - truly the fastest pole operator section with souped up batteries/motors and how about lights for night rallies ?
Not to por cold water on the idea, but dont you need to be 65 ?