It can be done but not cost affective. I've done many rods like your talking about. Probably $30 per rod for parts then add labor and your up around $50 to $75 per rod . Are you looking for aluminum or graphite reel seats, cork or foam grips. If your serious send me some pics on IM and I can give you a quote. I can send you some pics of rods I've done handles on, been building rods over 45 years.