Hey dude, if you want any pickup, you dont actually need to go thru the vpost way. You can try ebay. And i mean ebay.com not sg one. Many seller are willing to ship to Singapore, and for extra $10USD, you can get the color covers for the dimarzios!
Guitar wise, my opinion is that the best and cheapest are not from MF or GC. I been to states before, I've been to GC, they handle thier instrument like things in NTUC. They buy in bulk thats why price cheap. So if you buy, not happy, or find similar items cheaper elsewhere, within 30days can return. But they are not the BEST priced, dealers giving the best price cannot offer these kind of sales and return service, bcos too expensive on the logistic backup. Try ebay again, look for reliable dealers with good ratings, go to your bank and pay wire transfer (pay like 30 to 40bucks service charge.) and you get the thing you want!