Sounds like a good deal to me mate.
I run 15x8" Stock Rallye wheels with 275/60 BFGoodrich Radial T/A tyres.
The fit is superb, doesn't have that mad max looking buldge out the side etc........ (ack smiley)
You can easily fit 275's on yours if you decide to go with them, only problem is no one makes 8" trim rings so you'll have to use the stock 7" rings which leaves about a 1" gap, which you can hardly spot unless up close even then it looks fine.
I am using 15x7" up front with BFGoodrich Radial T/A tyres 245/60 in size.
Grab 'em I say!
Cheers,
Carl