Those prices are comparable to Singapore hobbies prices (if they had any MK kits left []). The Joker (when it last was sold here in the USA through Indy R/C) sold for about $300 and the Wild-7 sold for at least $600, but is a much nicer kit than the Joker - the wing and stab sheeting is one sheet of pre-cut balsa and there are some very nice pre-formed wood pieces, too. The Wild-7 also includes the plug in stab mechanics.
Does that hobby shop ship overseas?