Your thoughts.... are my thoughts. Sitting down and looking high and low, it's the only idea I can come up with. ALONG with "altering" the pedals and widening their location. As you say "precious inches" or cut your feet off and use wooden "stumps"! My associates and I will ponder this a little further.
Now....you also mentioned 20 inch rims. Enlighten me please.
Many thanks for jumping in Bob......Robert