It all depends on the skill level of the person, the tools he owns , the place he has to work on it ..
If you don't own welders,saws, air tools,etc ..
If you don't have a place to work on it for several weeks while its torn to pieces ...
If you have never done a project like this...
If the answers to any of the above is no ...
Doing one for the 1st time will be a challenge
When they are torn apart you need twice the space as when they are together ..
The frames on that era car are in general nice , soild foundations to work off of ..
On my Desoto ..I put on a M2 from
www.jimweimerrodgarage.com and a tri-4 bar rear from the same place
You can purchase front suspension from a number of suppliers