Charley remember the Miles craft kits come with router bits and guide collars and the Rockler kits require you to buy them separately. Both seem to have decent reviews. I do notice the Rockler kit does not include a frame system to hold the individual templates, they rely on taping the templates down.
You might also consider a pantagraph. You can print the sign then follow the printed sign to cut it out. You will be able to make letters any size to fit the project and not have to size the project to fit the lettering. The pantagraph can also be used for other projects or add pictures to the design. With the template systems you are limited in the bits you can use, with the pantagraph you can use just about any bit you want to. The pantagraph would be my choice because the possibilities are endless.
Your BRAIN Is The Most Important Power Tool In Your Shop. Turn It On Before You Turn On Any Other Power Tool.
A Disability Is Only A Disability If You Let It Be One