Heasman Steering
455-463 Princes Highway
(cnr Railway Road)
Sydenham NSW 2044
tel (02) 9557 3739
fax (02) 9550 3270
http://www.heasmans.com.au/new_site3/main.html
These people are Bilstein agents and will re tube your strut, they also fit tubes to except Billys on MK2 stubs.
I have used them many times.
PS
Check if you have the small piston rods on your 2.8 legs, if so they will overheat badly on forest rallys, the rods can be seen blue and brown. Heasmans can up grade to 11mm rods.