I know your on a budget but buy the Cimarron now. Use it on the trip and when the budget allows buy the bug nest. I went with a Cimarron this year and so far absolutely love it. It works perfect for my set up.
I would go this route as well. I bought a Cimarron last year and have no complaints and it is plenty of room for me, my partner, stove and gear. My wife is not very keen to sleeping in a floorless so I have been looking at getting the nest so when she comes backpacking she will feel more comfortable.
If you need it for a hunt now and are talking about using it in the spring in Texas that gives you 6 months or so to save the money for the nest.