I have built three kits. All from Great Planes, all die cut. I would guess laser cut parts are great but I would not make a decision only based on how the parts were cut.

Since you want to mount a camera, a high wing design might be desireable. A couple of our club members have used high wing trainers as camera platforms.

The SIG LT-40 is about the same size as the Great Planes PT-60 (my first kit) but is light enough to fly with an inexpensive 40 class engine. One of the RCU moderators (RCKen) did a very detailed build thread http://www.rcuniverse.com/forum/fb.asp?m=3439708 on the LT-40 so a lot of questions you might have are already answered.