As it over the £125K starting level, you'll have an extra £6.5 to pay on top for stamp duty, and second hone tax. If you can get it for £124,995, the it'll only be stamp duty at 2% making it £2.5K extra.
Aldemore will do an 80% mortgage, so you'd need £26K for the deposit, and at 5.48% (after 2 years that is) you'd need £475 per month for the interest repayment on the 80% of 130K. How are prices rising though, because if the figures balance out, then you can reckon on the uplift in value to make the profit. Even if they start a massive housebuilding program, it's only another finanacial meltdown that will affect house prices, but as always, but the worst house in the best area, or look for one that you can add value to.