Ok....Just checked out Rossco's bar and rang Gary and I am happy to announce my bull bar sux!!!
From the front plate to the AC condenser is 270mm.
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Mine looks like an ARB Delux Bar as above but it is a winch bar, not sure whats going on there.
Rosscos is the ARB delux winch bar as shown below and is 315mm from plate to AC. Loads more room and will fit the highmount no probs!
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And Gary's is the ARB Commercial bar which is a massive 400mm clearance!!!
If anyone finds an ARB Deluxe winch bar for sale please let me know...lol...Or swap for my awesome one!!!!