You just need a much shorter length spindle. You'll need to do some measuring and calculating
1. Measure the chainline you have now with the crank placed on the old spindle.
2. Remove the spindle and measure the overall length not including the threaded portion.
3. Measure the difference between the right and the left spindle lengths "outside" of the bearing flanges
After you have all that get back to us.
__________________
72 Frejus (for sale), Holdsworth Record (for sale), special CNC & Gitane Interclub / 74 Italvega NR (for sale) / c80 French / 82 Raleigh Intl MkII f&f (for sale)/ 83 Trek 620 (for sale)/ 84 Bruce Gordon Chinook (for sale)/ 85 Ron Cooper / 87 Centurion IM MV (for sale) / 03 Casati Dardo / 08 BF IRO / 09 Dogma FPX / 09 Giant TCX0 / 10 Vassago Fisticuff