My MV6 has to go

I can't afford to run 2 cars and I've got to teach 3 kids to drive

I can put them on the Omega for £2000/year
or
£500 all in, on a 1.1 Fiesta.
running cost will be the same.
Omega is 98 on an R, with 200,000 miles.
This car has done in excess of 100,000 miles on LPG
Work completed;
Both rear wheel bearings
Rear self levelling shocks
Rear heavy duty springs
crank sensor
Passenger side cam cover gasket
cam belt kit (20,000 miles ago)
Dis pack & leads
ABS ECU replaced (with donor)
replaced internal door/column trim from donor car
98 GLS centre console added
gearbox fluid changed (20,000 miles ago)
Oil & filter change (6,000 miles ago)
Issues;
White estate car, Green bonnet
Scrubbing near side tyre inner edge (Alignment)
1 heavily kerbed alloy
crack to nearside corner of windscreen
2 "O" ring seals missing on breather body (Will sort this weekend)
loses approx 1 pint of water/week
rust to 2 door edges + rear door
air con condensor sha**ed
1 Oxy sensor "open circuit"
Other work advisable
Update gearbox software
reprogram ABS ECU
Aux belt showing heavy cracking (not replaced with cambelt :-/ )
If I think of anything else I will add to the post