Vridar,
That's a nice machine. I wouldn't hesitate to rewire it and use it as is. Hand cranks are great and I have one, but I'm not overly enthralled with them. My weak spot is treadles.
Here's a couple links to help you with your rewiring:
{
http://www.sundialwire.com/sundialwi...veredwire.aspx }
{
http://www.antiquelampco.com/Catalog/Cord.htm# }
As far as promising to sell them as you fix them, don't bother. It doesn't work. I've tried that and found it's easier to sell them as I can and enjoy them all. Besides, no two are alike and if you're like me you enjoy trying out each and every one to see what makes 'em tick.
Joe