I agree, stick with LHD.
The only thing a front clip from a RHD Integra will do for you is give you a guide to cutting and modifying your OEM LHD firewall to fit the RHD componentry. The amount of time req'd to replicate the RHD firewall will be ridiculous, never mind the disassembly work.
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:: :ToDspin: - supermod
- but who gives a shit?
:: HAN Integra FAQ: If, by some miracle, yours hasn't been stolen... check it out!