Unless you can find a Qanba Q4 in store for under $150, your idea won’t work… You have to pay shipping costs and even in the US shipping for a joystick is usually at least $20 ON TOP OF what you’re already paying for the joystick…
Right now – unless you can find a Mad Catz TE online with a 25% discount or better PLUS free shipping --, the only joystick that sells for under $150 in-stores (in the US) that’s a pro-level stick is the HRAP V3 SA. It already has all-Sanwa parts, is PS3/PC/Mac-compatible… HRAP V3 SA’s retail for generally $129.99 in-store/online unless the vendor marks up (which IS legal).
HRAP V3 SA’s are unfortunately harder to find in-store (Micro Center’s do carry them in-store) than the Mad Catz TE and the stock online (everywhere) has been generally lower this past year. Even Hori doesn’t have the HRAP V3 SA in-stock on its own website now but advance word is that new-production HRAP V3 SA’s are coming later this month to online vendors.
I have also not been reading/hearing about a bunch of online discounts, either. There seem to be fewer of them this year for joysticks.
You will not find a brand-new multi-console joystick in the US for under $150… Especially if it has to be shipped in the mail.
People charge extra for dual-modded joysticks and for good reason… They have to buy a new PCB or solder a new one onto the existing joystick and these things aren’t as cheap as they used to be! It also takes considerable work to successfully solder joysticks and people should be paid for their effort.