Good orthos are very nice indeed. I used to own a bunch of UO HDs (which I see on the
UO website are making a comeback maybe??). Down to 12mm they were super comfy, the 9mm was still not bad but borderline for me for eye relief. The 7mm (or less) I could never get used to. 12mm was my fave and used it barlowed for higher powers. (I'm not sure if I still have it or if I sold it. I should check the IceTrade archives.
edit: I just rememered it got nicked at a music festival along with $500 worth of other EPs & things in a camera bag

)
These Fujiyamas are said to be very similar and price is very good at AEC esp considering the poor current $AU/$US exchange rate (if they actually have them in stock):
http://www.astronomy-electronics-cen....au/kkohki.htm
Fungus-free is always best.

I'd say have a go at pulling apart your EP, cleaning+sterilising the lenses and the EP internals and putting it back together. Orthos are simple enough to attempt such a thing.