The bonnet will be aluminium , same as all the jdm gc8 sti's mate. I would be more worried if it was a heavy steel one tbh.
Most 2 doors (type r's) wont have rear speakers unless , somebody has taken the time to cut out the holes as they have a solid rear shelf unlike the 4 doors.
Sounds like a decent motor realy with some good mods to be starting off with.

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Fellow Aussie trapped in the UK (for now),
Kept sane by my 2.5 jdm sti type r V5