Doddle m8 seriously, eBay pair for £10.
Jack car up,
wheel off,
WD40 the old anti roll nuts let it soak 15minutes,
Then with an Allen key and spanner / socket unloosen the nuts but don't remove them, your just cracking the old rust on them while the anti roll bars are under tension.
Then with a 2nd jack jack up right under the back of the disc brake to compress the main strut suspension spring.
You'll see the anti roll bar start to loosen and line up,
Once you see it line up and slacken off finish off undoing both nuts on the old roll bar
Replace with new
Tighten up with Allan key and spanner
Lower jack off back of brake disc
Wheel on
Finished