If your on a "budget" with an LS swap the best thing to do is draw it out on paper (all the parts you will need) and be patient. I did this and now its paying dividends, i'm really glad i did it. Despite all the information out there, when doing it on a budget, you will still run into problems, at least i did. My swap ran into the 11k range, but you can do it for closer to 5 or 6k if your good.
My tank i used, new, was sh$t, so i splurged on the Ricks, but there are plenty of mods you can do to your own tank for waaaaaay less $$.
Another suggestion is go with a truck block, there iron short blocks as opposed to aluminum and you save about 2500 in the grand scheme of things.
And there's plenty of GOOD info out there, oof course there's plenty of bad too but most of us here can read through the b.s.
Good luck and keep her slideways.....