I bought my wintec for the same reason; I didn't have the money for a real leather one. Now that I do, I'm almost 99% sure I'm getting a Bates, which is the 'leather' version of a wintec--which tells you how much I like my wintec!
Don't worry about people complaining about synthetics. Sometimes money IS an issue, and you can't afford everything. If you can't get a GOOD leather saddle (not a cheapo!) then your best bet is to get a wintec. They're balanced and they are a great saddle; you won't have to worry about it falling apart or whatnot. If I were you, I would look for one with the 'gullet system', that way you can change the size of the tree. It's well worth the small, small investment.
I have the all purpose, and can manage to get in a good position. No worries!
I'm not a fan of korsteel bits (the ones I have squeak >>) but they'll do if you can't afford anything else (try a consignment tack shop, if you can! You can get decent bits for cheap.)
About the bridle; I don't use a wintec bridle, but I do use a 'cheap' english one that I love love love love. It's 'gatsby' leather, and it was around 20-30 bucks, and it is the softest leather I've ever used (screw the 100 dollar bridles) and I've used it daily for five years with no problems. Look for it if you can!
I use the wintec normal stirrup leathers, and I've never had a problem with them. Love!
Hope that helps. Good luck!