It doesn't look like a typical Adams design to me but as it is Australian Registered you should be able look up the designer and builder.
There is a lot of info on this site.
www.amsa.gov.au/vessels-operators/ship-registration/transferring-ownership-australian-general-register-vessel and you will see her listed here
www.amsa.gov.au/vessels/shipping-registration/list-of-registered-ships/By the looks of her she will heavier displacement, maybe 13 to 14 tonnes and has been built as an ocean cruiser. The rig is set up well with furlers on both inner and outer fore stays, and jumper stays and forward swept spreaders at the peak of the inner fore stay which should eliminate any need for running backstays.
From the listing description she seems to be fully equipped and the engine is recently fitted new. He does hint at some minor problems. They become big problems if not tended to.
It is a steel hull with timber decks so you really need to check the deck out thoroughly and especially at the deck to hull joints. If there are leaks there may be major problems. As with all steel hulls, rust can be a big problem.
If everything is right with this yacht, it is capable of taking you around the world, but, for a yacht like this and what you intend, spend the money and have it surveyed by someone who really knows steel yachts.
Price wise I think it is about where the market is for this yacht. It all depends on the survey. If you can get it for $45,000 I think you would be doing quite well.
Cheers.