When I bought mine (also the MHL Lift) it was about $1200 for the foil only and then I just strapped it onto a really solid board (old North Race 2010 worked good). It was really worth this, as it does so much more and gives so much more wind range than a light wind kite for more than that amount. Generally though the foils retail for about 1200 Euro and the high performance ones even more.
I like your strapless take off. I think I've only done it one like that, normally I tilt the board on its side and then take off out the water when I go strapless.
There is stilll so much I want to learn, like jibing and switching feet while the board is in the air foiling, and then doing a tack and switching feet with the board up. I only know of one guy that has done a tack with the board foiling (check at 1:10 about):