With a 110/74 BCD I would go with a 24,34,46t chainring and run a 11-32 cassette.I have this setup on my LHT and love it.And I am building a Big Dummy with the same setup.It works good for me.With time you will learn what is best for you.One of my bicycle is a Nashbar touring bike and I run it with 700cx28 and it rides great its fast as heck I think very light weight.I love building bicycles you get to pick what you want to go on it. :-)
Oh by the way you can order the crank arms and build your on crank set like I did it will cost you a little more this way but I like it better just me.