By the looks of it there is nothing off the shelf for theses cars but lots of parts can be made to fit. Best thing is just to go though this site and read up on everything, some of the people on here have got some good power out of these little engines with just a uprated carb and new manifolds...
I'd say look for a cheap k11 1.3 as a donor, lots of people have done the swap on here so plenty of information about it and the 1.3s are good little engines, strong, chain driven and lightweight.
Or go super crazy and get a 7th gen celica, the 1zz 1.8 has around 140bhp as standard and are so...
Hi there mate I've got a set of brand new corse b coilovers for sale still in the box!
Same as that and apparently quite easy to do on a K11, found a video on YouTube of someone doing it.