[adanthar]

Once you have 3K chips at each $5 table I think you are at least going to get $200 for 'first or second' a decent chunk of the time. It'll still take luck but you can go for the gold pretty easily because your outlay is small.

If they have blinds measured in minutes on top of that I think this is more +EV than playing the 50's.

edit: Hmm, 'all five at once' is too much cash...but you can push SNG 1 on the first hand, SNG 2 on the second if you win, etc., like a ladder. I think this would be doable pretty quickly for far less money than you'd think.