Ok, I assume you have IFS? What you need for cheap lift from rear coils is a 80 Series landcruiser rear coils, and you need the 7 wrap ones. probably around year '97 would be good. this will give you about 4 inches of lift in the rear. I think ball joint spacers can give you about 1.5inches of lift just so you know. Obviously you will use the ball joint spacers if you have IFS. This will be a cheap method of lifting it. just make sure you will get the 7 wrap coils and not the 8 wrap. So you know, i have none of these things installed but i PLan to install the fj coils. you can probably get a deal on 2 coils for about $50. now if you want a better ride to it, you can go with a kit. here is a link to a great kit being sold for much cheaper than those $1000+ lift kits.
http://www.yotatech.com/f37/new-comp...s4u-com-54794/
you can go with that if you want, talk to phil on there (strap22) he is a good seller and will help you out any way he can.
both options should hold up the weight with no problems, it just depends how much your looking to spend and what ride quality you are looking for.