Hi Nick, we have just bought a Cabo Rico 38 sailboat in Virginia and we expect it to get to Fremantle (by ship) on Aug 2nd.
I looked at sailing it back ( did not have time ), importing it myself ( also not enough time and no local US contacts) and ended up buying through Yarras Edge Yachts in Melbourne. Importing the boat was not a cheap exercise, but it is a thing full of pitfalls if you try and do it yourself.
We have just sold our Catalina 310 in Fremantle and we have met people through the Catalina association who have imported their own boats recently. They were talking numbers around AUD$100k to bring the boat back themselves, all up. There are import duties, GST, freight, wharfage, transport to the load port, cost of cradle, unshipping and packing mast, fumigation, the list goes on. Bring our boat back cost us more than $100k, but we did not have any running around to do. I surveyed the boat in the US before committing ( I am a marine surveyor ) but Yarras Edge will do this and it is not necessary to make the trip personnally. I am not sure it would be cost effective on a very low priced boat, as the shipping costs are not going to be much less than for a more expensive boat and you may wind up with a theoretical capital loss. This may not be important to you.
It would be worth talking to Graham or Bruce at Yarras Edge in Melbourne just to get a second opinion. They are quite a straightforward bunch and I have not have any negative feedback from other cutomers I spoke to before we bought.
If you have any specific questions, let me know./