ah cyar tell yuh bout d interior nuh...but d steering is easy
all the AE Corolla steering column spline is the same so any steering wheel will work
now, u said u have a 1.3L engine...is it a the SOHC 12valve 2E?
does it have A/C...or more importantly, does it have two main pulleys? make sure u have one for alternator/water pump and another for a/c and power steering
if not, u can get one off a scrapped engine
once that's in order, to install the power steering u'll need
1. power steering pump and bracket for ur engine ~~~ roughly $300
2. depending on which pump u get, u'll have to get an external reservoir (and bracket) if the pump doesn't have one built in ~~~ $75-$100
3. power steering rack (any AE rack will work...make sure u get the coupling and two clamps with it when u buy it) ~~~ roughly $300
4. lines (u may have to make a custom high-pressure line by Farfan..carry the pump and rack for them to get the correct fitting to make up the line)..the return line can be done with ATF hose and hose clamps since is low pressure ~~~ $ ???
if u scrapping from a front cut, u have access to EVERYTHING so no need to shop around
it's a simple case of swapping racks, bolting up the pump and getting the right size belt , then running the lines and filling the system...suck eye ting