It will run with low compression numbers, but will not run or perform as expected. My wife's recently rebuilt 97 Metro averages 47 MPG. No freeway driving.
I would save up some money for parts and consider rebuilding the head...........
1.0L Head Repair Guide
Detailed 1.0L head rebuild guide
Buy stainless steel valves and get the new head bolts from
3Tech Performance and a head gasket kit from Felpro.
Good luck!