jmckinley,
Good choice on the Eddystone 1917. I have a number of 1917s, some military and some that were sporterized by others. My trigger replacement preference for the 1917 Enfield (and for the Kar98k Mauser, and 1903 and 1903-A3 Springfield) is a Timney. They have a website at
www.timneytriggers.com. These triggers are best fitted by a competent gunsmith to ensure that the sear engagement and safety work properly and safely. I have fitted Timney triggers and on some rifles there were no problems, while some others needed professional attention. All the best...
Gil