im thinking you are being a little personally involved here
Perhaps, take the emotion out of it.
Once you have established that you have an alternative, and you arent "bonded" to the valuer , your will be more detached with the outcome, and believe it or not, the valuer will pick up on this subconciously, and I believe you will have a better val.
All the logical, left hemisphere folks are thinking, whats Rolf smoking.......... but thats my experience.
Many times we try and force things only to find that wasnt our "true" path.
If you are dependent on accessing the equity, and there is 80 000 available from another valuer thence lender, and that can be geared to add 500 k to your portfolio, how weeny will a 10 k break fee look in 20 years time ?
Am I saying you should break your loan? No,Im suggesting you do the homework and see if its viable, then if your incumbent valuer still thinks your equity isnt there ............ then you have options.
Dig the well before you need the water might be apt here
ta
rolf