New surface pro, what come first?

[jonnym]

Hello
I was looking for an Asus t100 transformer, when I came across a surface pro 1 64gb, manufacturer refurbished and described as A1 for £274.

I know the surface is far superior and took a punt, does it sound like a reasonable price?

I'm reading through the forum, but wondered if there were any tips on what to look out for in regards to common manufacturing faults etc.

Once I know the surface is OK what next? Do I take an image of the system or update the OS or somthing else. I will be using it with a bluetooth keyboard and mouse initially and have read that updating it without it being docked can be a problem, would the Bluetooth devices be OK instead?

And advice would be helpfull

Thanks

Jonnym