Bowhunter-
BSD kits are great! I have a BSD Sprint, a Baby Thor, and a L3 Horizon. All their kits have good quality components and great instructions (they read like a primer in HPR). One of my friends did his L1 on a Diablo.
For strength, I would also recommend PML kits. I have PML Cirrus, Endeavor, Small Endeavor and did my L1 on a Callisto (AT H97 BJ) and my L2 on a Hydra (Pro38 5G). I love the ease of finishing with quantum tube.
After two years of launches, my Callisto augered in BAD...way to much wind to safely launch on a marginally powered motor... The ejection charge went off no more than 3' off the ground, shooting the nose cone into the desert hard pack. The cone got some deep gouges, but came through intact. The QT, though notorious (supposedly) for taking impact badly, only cracked slightly at the impact end. A little trim of the tube and some bondo and fresh paint, it's flying again!
Good luck on your L1!