What to do, What to do??

[-JJ-]

Ok so most of you know i have no more transmisson, the following are my options: (prices in AUD)

1) Rebuild: svx 4eat, between $1800 - $2250
2) Purchase 4.11 4eat (with diff) for $1200 (has 104000kms on it ) from a 1998 RX liberty (lecacy)
3 ) Purchase a JDM 4.44 4eat (with diff) for $900 (from a trusted friend) from a 96-97 legacy TT (GT)

*ok so i need to know wheather option 2, and 3 autos can plug and play? or do they use different wiring harneses??
*also what exactly does need to happen with the drive shafts, i know they need to be modifyed, but in what way??
*also when and why do you need to install a 20ohm resistor??

if some one dosent mind posting that would be nice , otherwise i will continue sifting through the seach results