What kind of problems are you having with the stock traveler? It just sounds like you may be fixin to spend a lot of money where you don't have to.

If your traveler doesn't "travel" like it should, find out why. Check the track for debris, corrosion, or build up of gummy residue if you've ever tried to lubricate it. Use some acetone or laquer thinner to clean it, then make sure it is smooth. Inspect your traveler car, the plastic ball and slug can get gummed-up or jagged, they should be clean and smooth. The plastic parts can be replaced. You should not need any lubricant if everything is in good condition, but if you do lube, use only something dry like Sailcote.