Gday Ewald, whatever happened to your Harrier project?.... How large an Arrow do you have in mind, I would love a true scale version for myself but no time really for scratch building in forseeable future. I remember Doug Hyslip built a large D/F version for the Arrow movie a few years back, I wonder if he has any plans...?
http://www.actionhobby.ca/list.cfm?CID=13

I still have your CT-114 awaiting its turn for a dust off and engine upgrade, I reckon possibly the new Wren MW-44 gold might be a good match there.

Cheers-