how can you say your property funds itself when you make a loss every year and you own just 38% of it???
you said yourself that if you sold and got a cash rate for your equity that you would get around $27k annually. compare that to your current situation of an annual loss and more risk in capital destruction through market downturn etc. (don't forget, making a loss is great if you are in a high income tax bracket, are at the start of a cycle and expect to clean up in capital gains when you cash out to a bigger fool, otherwise, things unwind quickly if theres any capital stagnation or destruction)
then you talked about gut feel in achieving growth of 8% when all around us things are looking a bit grim. i hope you do achieve that, but i personally see more risk in your current position in this time. if you think you could sell it for 740k, an option is always to sell and watch for a time. preservation of wealth in downtimes is just as important as increasing it in boom times.