Yeah, that is a bit of a tall order, Jack. Heat, rain, Scout abuse, cold weather. Need a tough tent! Probably a three-season model, one that is well-made but not a ton of dough.
The Quarter Dome T1
Look to "house brands" firstREI, L.L. Bean, companies such as that. Good quality, very affordable. REI's Quarter Dome T1 ($199) is light (under three pounds) and sturdy, a great one-person tent. L.L. Beans Microlight ($149) requires stake-out for set-up, but that is no hardship. Itll hold two and weighs under four pounds.
Eureka! also offers very good value. The Backcountry 1 ($165) is a bit heavy for a solo (four pounds) but has good build quality and lots of room. Also better weather-proofness than some lighter tents by virtue of less mesh.
Sierra Designs Clip Flashlight. Again, you need to stake this securely for set-up, but in return you get a large (two person), light (under four pounds), extremely rugged tent that sells for $199. I just love that tent.
Look to Kelty as well. Its Teton 2 offers good quality, room for two, excellent weatherproofness, moderate weight (just under five pounds), and, at $150, it's a good buy!