61 4dr. Underlayment prefrences

[61 Waycrosscomet]

So my 61 did not have any carpet. Just a vinyl flooring with jute underlayment.
Any recommendations for underlayment for the 61? I plan to just put down black vinyl flooring again. Not a fan of car carpet.

Also, the floor (pan) has been blasted, primed and painted with a tough marine paint.
There were manufacturer holes punched through the pan, looked like the holes the old fashioned can openers made, triangle shaped. odd.
At this time I plugged them with dum dum caulk. The other round holes have the rubber plugs in them.

I have heard people complain about the peel and stick underlayment. But don't know much about it.

thanks for any advice.....

[power band]

' good to hear the swept wing '61 is on the finish side of the project, how about teaser pics'
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probably had the ribbed rubber/vinyl carpet which may be available ? . I'm a fan of simple 'Boat Carpet' in black - easily cut and shaped to look like black pre-cut/molded.
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in the '63 , large square (18/18"?) 'pressure sensitive' (sticky backed) commercial carpet squares, worked great with thick foam backing needs nothing behind it but colors limited.
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have fun

[power band]

" holes punched through the pan, looked like the holes the old fashioned can openers made"
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any chance it was on a frame straightening jig ?
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have fun
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[61 Waycrosscomet]

Still need some more advice on this.
Originally on top of the pan the manufacturer sprayed or brushed some sort of black tar? maybe about 1/16 inch thick., the painted. On top of that was
the fibrous jute fabric, then on top of that was the vinyl flooring. There was no carpet in this car, just a vinyl flooring, which I will replace with same.

I am a bit at a loss as to what I need to put down. Do I need some sort of buytl or tar type barrier before I put down a jute replacement?
And whats a good jute replacement? alot of people don't like the old jute stuff, yet they sell tons of it online.