alps

I'm looking to buy a "budget" sleeping bag(for colder weather) 100-150$ range, and what I've come up with so far is a wiggys acu marpat 0°, a slumberjack up wind 0°,a slumberjack boundary -20°,a alps mountaineering blaze-20°, a mountain hardwear lamina 0° I'd like them to be decently light say...