adb291088,
Since you're in India what would the shipping costs be? My first advise to you would be to check in the SPAD forum and do a search for ARFs, you'll find that quite a few have tried it before, but in all honesty it just can't be done to make any kind of living from. Most are lucky to break even. There are several of them that show up on eBay from time to time. Most sell in the $20 - $50 range. One of the problems is that once the people get them and see how easy they are to build they head off to the hardware store to get the parts to make the next one themselves, so not much repeat business. Best of luck if you do decide to go for it though.

Jake