Easiest front sub for a 50's Olds

What is the easiest front subframe to install in a 50 Olds. Is there anyone that will just bolt in or under the stock frame? Jag? I don't need to hear "use the stock suspension", due to previous owners hacking it up.

 

What year olds ?

when I had my 55 Buick a jag front end was a relatively easy swap from what I researched .
Not sure how different an olds would be .

rear suspension was almost a bolt in/ weld in .

 

1950

 

I did a 68-72 nova graft on a 50 Olds. I copied what Marty Strode did on his

 

I would contact Southern Rods and look at the Fatman front end. I've installed two on my cars and love them. Besides a good ride and handling, they give you more room for engine and accessory installation.