Something like 5 miles west of Maffra might be the go for local ops.
Is "10 miles to the west of East Sale on the 260 bearing" acceptable? Gives the trike driver a vague idea (the west) and anyone a bit more concerned about accuracy my exact location.
Speaking of inbound to CTAFs I've heard students who are so caught up about making the "mandatory" calls found in the CAAPs that if they miss the 10 mile call by a minute will still say "10 miles" rather than 8 as they are scared they will get in trouble!!