From what I have heard, there is supposed to be a profit motive, not just the ablity to buy cheaper for yourself. Location has to be zoned appropriatly for retail. I have heard that they don't want kitchen table dealers out of the house. I do know a dealer or two that have an actual shop at their house, but it is a seperate entrance with the shop just within that entrance and not down the basement at the other end of the house etc. Insurance considerations come to mind, you certainly don't want to go with out it and get sued from someone who shoots off their toe. Might be best to draw up a business plan to see what it will cost you to operate the business and if it would be worthwhile. It might cost more that it's worth if the business size is too small. A lot if not most distributors and wholesalers want you to be stocking dealers and before you can purchase from them you have to meet their qualifications. One guy I now did have a closet he leased in the backroom of his wife's business for his business and he ended up putting all his personally owned firearms into inventory to be able to qualify as a stocking dealer. I don't know how the legality of that worked from a business and taxes point of view, but it enabled him to have a stocking inventory without putting out additional capital to purchase a bunch of stock. With the guns and ammo shortage there is right now, it may be difficult to find a distributor or wholesaler that will be willing to pick you up as a new cutomer. If you do this out of your house, do you really want the BATF coming to your house for an inspection? Remember the paperwork, the BATF gets very picky. At least on the 4473, they don't like abbreviations. I know one guy that had a real shop and was ill and closed his doors while he recovered. They day he opened back up a few months later, the BATF showed up and spent three days going over everthing. He was chastized for undotted i's and uncrossed t's. On tranfers, one dealer I know charges $25 and was told by BATF that he need to charge more, that $25 was not enough to be making a profit. You may want to consider an 03 FFL, a curio and relics license. Information on a 03FFL can be found here:
http://www.cruffler.com/becomingcruffler.html