This old Torpado is very similar to the OP's bike. Nothing special when compared to higher end bikes and most certainly not gas pipe, nor is the tube set exotic. That said, I have restored quite a few such bikes and I find them to be interesting projects and just fine to ride. This late sixties Torpado arrived looking like this...
$250 to $300 CND turned it into this (I do all of the work myself, including the brushed on paint job). I am waiting for tires before adjusting the fender lines...
Put another way, I think such bikes to be worthy projects and would not pass up the opportunity to build another one. This is the last Torpado, a step above the grey and red one above, and a treat to ride...