Engine & transmission swap - possible?

Hi everyone,

I am in the market to buy a Metro. I'd really like to get a 95 or newer due to the nicer body style, but it seems most of them are 4 cylinder and a lot are automatics. Two questions:

1) Is it possible to take a 4 cylinder engine in a 95 or later and trade it out with a 3 cylinder? I'd really like to get the 3 cylinder fuel economy.
2) Can you replace an automatic transmission with a manual one? Any changes to the drive train pre or post-transmission which would need to be done, or changes to the interior (where the shifter would go)?

Thanks for your help.

you would have to change the mounts and the wiring harnes and ECU, get a set of pedals and drill some holes, easier to find one with the 3 cyl if thats what you want