Hi,
unless there is some upside to this deal, I'd pass, looking at the rent of £6600 per year, a quick calculation says that IF you could borrow money at 6.6% Interest Only on £100,000, you'd break even - not taking into account void periods, insurance, repairs etc. (Also buying costs, mortgage fees etc)
Yield is (6600/130000)*100 = 5%.
Also, most mortgage companies want rent to cover mortgage by say 125%, so to give you a mortgage which requires interest only payment of £6600 per year, they'd want you to be getting 6600 * (125/100) = £8,250 in rent.
I think that you'd be wiser to look for a better deal, remember, if you're buying at auction, I think that the percentages of properties sold is going down.
Also, have you thought about the value of the property, would you be happy buying this one if it goes down 10% in value in the next year, have you thought about what your remortgage options are if this happens ?
Good luck,
Chris