Ground sheet

All,
I have a Wilderness Equipment First Arrow, I've had 3 over a 38 year period, sadly, the floors are not as good as the 1st one was. So, I need a ground sheet because fixing leaks in the floor is becoming tiresome. Now, in all fairness, Ian has told me to return it and they'll fit a new floor if he deems it necessary, however, he also admits they can't get the older materials anymore, something about "environmentally friendly" some of the manufactures of these raw materials ought to head off to some of the "lesser developed" counties for a reality check occasionally!
Anyway, I have a ~17M roll of 500 denier Cordura, can't remember if it's coated but would imagine it is, laying around in the house, along with too many packs, bicycles, boots, tents etc, as one does after 4 decades of collecting gear!
Said roll is 1550 wide, the perfect width for said First Arrow, so I'm wondering how would the Cordura go as a ground sheet? Don't even bother mentioning the weight, I don't care about it, particularly if it saves both my tent and sanity from holes.
TIA Al.
I have a Wilderness Equipment First Arrow, I've had 3 over a 38 year period, sadly, the floors are not as good as the 1st one was. So, I need a ground sheet because fixing leaks in the floor is becoming tiresome. Now, in all fairness, Ian has told me to return it and they'll fit a new floor if he deems it necessary, however, he also admits they can't get the older materials anymore, something about "environmentally friendly" some of the manufactures of these raw materials ought to head off to some of the "lesser developed" counties for a reality check occasionally!
Anyway, I have a ~17M roll of 500 denier Cordura, can't remember if it's coated but would imagine it is, laying around in the house, along with too many packs, bicycles, boots, tents etc, as one does after 4 decades of collecting gear!
Said roll is 1550 wide, the perfect width for said First Arrow, so I'm wondering how would the Cordura go as a ground sheet? Don't even bother mentioning the weight, I don't care about it, particularly if it saves both my tent and sanity from holes.
TIA Al.