It would be if you could find 6 newbie/wanabees based close to a designated airfield. Thats a long shot but theres no harm in asking and advertising. Plus to make it cost effective you'll have to be buying an old aircraft and that puts people off instantly not just because of the chances of a catastrophic failiure but just the overall maintenance costs that an older aircraft may incur. Its a nice idea that i and probably many others have toyed with but many have stayed clear of .
Buying a share of a reputable aircraft is a different matter completely though