If you plan on doing this on a yearly basis I would suggest spending a decent amount of money on a good 4 season tent and good lightweight pack. I have a Eureka alpenlite xt tent that is absolutely amazing. I've had it for 5-6 years now and have spent many winter nights in it. Big enough for you and your gear, stays bone dry, and is pretty light. It is a bit pricey (~$250 when i bought it) but definitely worth it. And my pack is the Cabelas Alaskan outfitter series frame pack. Thing has been through hell and back. It too is pricey (~$200 when I bought it) but worth it. I know you said you were on a tight budget, but some things for camping are definitely worth spending money on and to me these are a couple of them. Just my 2 cents.