I'm building up a Pinto and I just bought one of those slick Puch longseats. Not the regular Pinto 1.5 seats, one of the ones like treats sells. Anyone mount one of these things on a Pinto before? I searched through the pics but didn't find anything. I'd rather find out if this is even possible before I hack up my frame. If so, can someone please post some pics of where they had to customize their frame? Thanks in advance.