You don't have a missing lip, you just mentioned in your first post that "and the front lip is pretty beaten up from the previous owner". I'm guessing now you just meant the bottom of the front bumper. If your willing to deal with finding a paint shop, you could probably pickup a new bumper either from a junkyard, from Honda or from the aftermarket (I don't know what's available to you down under). The pic you posted is pretty dark, but I don't think the bumper looks bad. The silver mesh in the grill doesn't really do anything for me, but the car looks good. There are some factory optional and aftermarket lips that look good to.
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Andy - Reinstated
Hybrid Forum Moderator
'06 Subaru Legacy Spec B - Stock, for now
'98 Civic EX - CTR headlights and grill, Kosei K1's, for sale
'90 240SX - SR20DET that will never get installed, project car.