i found it on ebay selling from a company in atlanta, georgia called Jarco incorporated. they deal with a shit load of jdm parts, clips, swaps, etc.. from japan but they are only an auction company from what i know. they have sold 2 mugen bumpers for a 4th gen lude in the past 5 or so years i have been looking, and trust me i look up prelude mugen parts on ebay, yahoo, jdm auction sites everyday practically in hopes that i will find another one. and i will one day.
-Zac