I would say buy the wing, get up your local park and get practicing!
i bought a great harness from ebay for about 50 quid , its made of straps instead of a cheap paraglider harness - you dont sweat (as much)!
incidentally, i will have the same wing for sale soon in blue and black, but with a paramotor also (for a bigger guy - im 18 stone)
I found that the reaction tends to 'overshoot' when you pull it up, but you get used to it....