First of all its T-O-N.....
And please use beginings and endings to your sentences, it makes them a LOT easier to understand what you are asking. (. , ?)
Now for you question. A 53 Mercury what? 2 door? 4 door? Merc Truck?
Are you actually going to build it or are you just asking questions again to waste everyone's time? If you are serious about this,then people will be more than willing to help you out. I am still waiting on the pics of your RWD converted Caddy that you promised us.
Later,
WEIMER