I didnt have any specific advice for you re: the nursey set you posted but I am also seriously on a budget and wanted to tell you about freecycle.org.
I've already gotten some clothes, a strap n go graco stroller, and a fisher price cradle swing on there (a pnp too but it was not in good condition).
Also, I have seen extremely similar changing tables to the one you posted on CraigsList for $20. It might be worth it, this is somewhat my plan, to get one from CL and invest in the crib.
The other thing to consider: are you planning on crib sleeping right away? I plan to have baby in our room for a while (will hopefully be able to EBF) and so we may not even get a crib at all. Use a bassinet/cosleeper/rocknplay/packnplay and either save up for a crib eventually, find one on sale or transition eventually from pnp to toddler mattress on floor. Cribs are ridiculously expensive.
Just some food for thought but either way, definitely be checking out freecycle and CL!
HTH! :-)