tube chassis vs mod up IRS pan

[Vincent]

Hey guys i am talking to a race car fabricator here in Indy about building a custom bolt on Double wish bone front suspention for my 64 bug. I am trying to decide right now if i want to get an IRS pan and start work from there or just go all tube chassis. If i go the way of tube chassis then I can also have double a arm rear suspention if i want. Each have there pros and cons the IRS route would be cheaper i am thinking but is heaver and i have to work with what is avaliable. Going tube chassis leaves me more open to doing custom work. My car will not be a daily driver just a spring and fall and weekend car. some auto x and some road racing. a few questions for you that might know. how much weight may i look at loosing by going the tube chassis way?