researche it and yes it can be done, but i decided to go with boughten, b/c the time frame involved, with curing alone, it has to be done properly, or it could destry everything, it is somewhat risky here
but it does definitely have benefits, like cost and more so, you can custom build your shapes
check out garf, i think it is
www.garf.org, i think,
they do have alot of info on it
hth and good luck