since you are probably going to upgrade anyway, take a look at windward sheeting traveler systems. Once you've sailed with one it's hard to go back.
I'm looking to upgrade to one next year, probably harken, system #2 on this page...
for under 600.
These cars are great when sailing, but I found they made it real difficult to immobilize the traveller car mid track if you are at rest.
If you routinely secure the traveller at one end of the track or the other it's not a big deal.