Theresa - below is a testimonial from Peter Dill of IBM how he used XtremeAR.
Will let others answer your questions about integration. But I thought this video might be useful to you.
Network letency is the key issues. Normally it will provide good performance when the lantency is less 40-50ms. If the latency reachs 60ms above , you will see frequent seconds interupts. Mentor don't prices XtremeAR, but every machine shuold have a pinnacle with Xtremepcb client option and every XtremeAR session should have a Xtremepcb server license.