mitch they are a good choice,
I've had a nail puncture repaired at a garage with a plug, and it was fine. they will only do such a repair if it's safe to do so. So plenty tread on it and it's sister tyre on the same axle then it's also financially viable.
There again, I've had nails in a 3mm tyre and it was not viable wad wise, so replaced with two new ones.
As to which axle the new tyres should gone......well you could end up with a thread a mile long arguing drive axle or on front wheel drive cars rear axle. Me I always believed they should go on the drive wheels. But on doing the research I found that industry professionals and the police [who attend tyre blow out accidents] say the newer tyres should always go on the rear axle. And as a result I followed their advice, because on reading up on the subject I agree with their logic.
Anyhow here are some links to threads I've written on the subject of tyres and tyre safety:
[url="http://www.fordownersclub.com/forums/topic/16307-when-its-not-economical-to-repair-a-tyre/"]When It's Not Economical To Repair A Tyre[/url]
[url="http://fordownersclub.com/forums/topic/9551-four-bits-of-rubber-between-you-and-whatever/"]Four Bits Of Rubber Between You And Whatever[/url]
[url="http://www.fordownersclub.com/forums/topic/10879-how-old-are-your-tyres/"]How Old Are Your Tyres[/url]
You could say I'm a bit "nerdy" when it comes to tyres
I went for the [url="http://shop.ebay.co.uk/?_nkw=goodyear"]Goodyear[/url] Optigrips in the end:
A new set on the rear axle Oct 2010.
And I replaced the fronts Aug 2011.
Planning on swapping axles around, back end of 2013 if all goes to plan
Last tyre tread check back in Dec 2011 I had 7.07mm on the fronts and 6.73mm on the rears.