No experience with the Timney's, but I've had good luck with the Bold triggers (I have them on 2 rifles, a Swede M96 and a Turk M38). The actual trigger bow is plastic which I kinda dislike but function is good
Huber Concepts and Dayton Traister also make adjustable triggers for the Mauser that are metal and look nice. No experience with these, but the Huber Concepts Ultra-Light in SS looks VERY nice. I'm seriously considering picking one up for one of my guns.
And of course, you can always try modifying the existing trigger. If worse comes to worse you'll mess it up and end up buying one of the above and you're out nothing. If it works you avoid buying a replacement all together
. Nothing to lose, just make sure you test it for safety extensively before taking it out with live ammo.