Cisco T1 WICs
It really depends on what you need to do with the routers. If you need to set them up from scratch and build the T1 interfaces, then yes it can be pretty complicated. If they are basically setup and you just need to configure the T1 interface then that isn't too bad. The problem is that T1s come in a number of flavors depending on how it is provisioned, if it is a full T1 or partial, if it is burstable or not, if it is a straight point to point, a FRATM connection, what type of framing, etc. Heck even the wires used to connect from the demark (Smart Jack) to the WIC is a different pin-out than standard ethernet.
Cisco's web site is a good place to start, the technical support, product support (router of choice) and then software configuration will help some (especially to show command information). But as previous people have stated it takes some time to set one up properly. If it is mission critical you probably need someone to come in and set it up.
If you are the only person who does this and really need some help or guidance let me know and I will see if I can find some old configuration files I had for the 2600 series routers, as I have built out fifty plus remote offices on cisco gear. Although it has been a couple years. You can contact me at pjhaydenatgmaildotcom.