Hi Hugh,
Check out the Land Registry, here's the link,
http://www.uklrs.co.uk/land-registry/scotland.asp
These are the main documents of title, and contain a description of the property, its tenure, the name and address of the owners, purchase price, details of mortgages and other charges, covenants etc and a large scale title plan. (Cost approx £30.)
I wouldn't inform the estate agent of the size of your deposit. If the bank were to auction this property it would go to auction at 30 per cent less than the market value130,000.
Before submitting an offer also check out what previous size houses in same postcode have sold for in the previous 3 months.
Be bold and do offer below the market value , don't discuss too much with the agent, if they know you can go higher then you'll end up paying higher.
Any more questions please feel free to ask,
x