can't say how many hours it took, as I jump around on to many projects, should just start and finish one at a time
but my brain doesn't work that way...
but a chassis swap is not to hard if your doing a truck.
just set the body on the newer frame and measure a few times till it looks right and weld up some body mounts and move on to engine and trans.

that black and red truck my son did was a 36 or 37 chevy cab we had around here that someone cut the roof off of years ago so my son mounted the cab and old bed we had onto a 85 dodge D50 chassis we had here too and put together a LO BUCK rod just for fun.
it was a fun fast rod.

we had the body,bed,frame, $50.00 engine and trans,side pipes,shifter and gas tank.
the only things he needed was to do a driveshaft and have the seats covered.


my son sold it to a guy and this is what it looks like now




This is my sons current truck now it was the 4x4 above, now on a dakota chassis



and this is my 35 dodge PU project
toyota frame with a 37 dodge wavy axle,
68 440/727
"B" body rear end with a 4 bar and coil; overs.