Suzuki 1.0 is from Geo or Chevy Metro. Probably used in other "Cultus" based cars too.
Later Metro's have the 1.3 four cylinder.
By the time you get to the 1.6 you may be into sequential injection and VVT so no longer simple.
They are cheap flimsy cars and come up as projects or parts on-line frequently.
Self serve junk yards have them often. The original first gear can be weak, second gear synchro wears out, and a shopping cart incident may be enough for one to be totaled.
Do not fear buying one that does not run, they are usually "Simple" to fix.
The engines last very well but a bad electrical connection or clogged injector will put them out of commission.
They are OBD-2 if that helps.
Wiring design for the lights is poor, with a known issue of the headlamp connector under the dash melting, then the car ends up parked.
I bought an entire car for $200.00 (No headlamps, melted connector) and another with an amateur "Rebuilt engine" for $500.00.
Guess which one ran best after replacing the timing belt and fixing the lights.
Like most modern engines plan on replacing the timing belt, cam and crank seals, plus water pump even if you do not want to rebuild the engine.
All of which should be less than $100.00 if you look on-line.
For $1,000.00
you should be getting an entire car too nice to use for parts.
I just sold my $200.00 (Plus tune-up) Metro that got 45.7 MPG at 236,000 miles for $500.00
Unless converting to carbs you need to make sure to get the ECU and F.I. components so a whole car is probably best.
You-tube vids will show you how to fit Bike carbs but opinions are mixed on that being simpler than the original throttle body F.I.
I am going to do my "Rebuilt" engine over again.
The head was done by a machine shop and seems fine so all I have to do is the lower end for around $300.00
Then I will part out the rest of it. Might save the trans for a future Middy build.
I need a high MPG car right away and the Metro body needs way too much work.
So I now plan to put the Geo 1.0 into a pretty clean Myers Manx type buggy I can get for only $1,000.00
I live in the Nevada desert so a 55 HP and 6K RPM buggy should be fun.
This will be a great learning experience for my more ambitious Tatum build.
I will document my progress.