Gentlemen. New to the forum but not the condition.
I understand your frustration with the HRU and Honda in general but I am perplexed by your solution. Trading the flawed local Honda product for an American "tastes" version which is unsuited to our conditions (unless suitably modified) appears counter productive. Once imported, the HRX is well over 1k. It carries no warranty or local parts back up and clearly requires significant modification in order to operate effectively. Moreover, it is still a Honda; the very brand which seems to have garnered so much criticism of late.
Why not simply purchase a locally available product from another brand?