For rod repair restoration products
http://www.jannsnetcraft.com/. Great service and anything you'd want for rod and fly building.
As far as cleaning up the old handle for the cheap & easy way, I'd try Murphy's Oil Soap. The correct way would be as follows....
3 tablespoons boiled linseed oil (you buy it as boiled, don't boil it, lol)
2 tablespoons turpentine
1 quart hot water
Clean using cloth damp in the above mixture and and rinse and wring the cloth out often in the mixture. Once cleaned use a dry cloth to remove any remaining linseed oil mixture. You'll know it's all off once the surface is no longer tacky.
If there are tough stains use 0000 steel wool dipped in the solution.
Do not use abrasive or chemical cleaners, such as soft scrub, on wood as it will dry out the wood and it will crack. I do repair and restoration to guitars so know this area well and have seen damage chemicals can do to woods.
Also be sure to protect the wood once cleaned. Seal, polish or wax it. I prefer beeswax or lemon oil for wood items you handle, but you have to reapply this every so often to keep the wood from drying out. Google French Polish or "padding" if the old wood finish is still on it and you would like to freshen up the finish.
