well its quite a difficult question because the complete and trouble free swap will cost way more than the market value of your car at the present .
and it also depends and how deep you wanna go into this as getting wiring 100% is the real target .
Fuel pump setting , Front Suspension, air cleaner box, and lots & lots more.
but do not worry if you really into it than i can guide you further .
I have done couple of 3S swaps in E-70 and they are really lovely .
but i will go for 1RZ next time may be. i love having More Torque though .
one of the quick and basic swap of 3S in my friend ride :-