Well realistically if you go looking for a secondhand u/l EA manual bomb you can get it for $800 or so, then spend $300-$700 on the box to rebuild it. Or get a complete kit s/h from a wrecker for $1k, then either take a chance or rebuild it, then put it in.
Basically I usually make about $500 on the deal for labour and stuff. Sometimes a bit less depending on what needs doing to the box.
Then take a weekend and stick it in the car. Like I said, if tools/space is a problem you're welcome to use my stuff, and I can sit about and offer advice
I actually have a box lined up to be put in after my leg's healed (2-6 months apparently), and a few more people looking. Nothing's urgent though so everybody's got time to save up some $$ hehe.
Have a look through the Quokka and the auctions, that'll be your best bet. Or if you go with the $1k setup, I might be able to hook you up with a wrecker buddy. He'd probably do the work cheapish too, probably over $2k all up though.