Team advice - planning for finals

[kanga7]

Hey guys this is my current team:

I have $169,500 in the bank and 6 trades


Trying to identify the week areas in my team:
ballantyne in fwds and bottom 3 backs (grimes would normally be there) seem to be issues.

Definete plan:
upgrade ballantyne. im thinking either goodes or pav - leaning towards goodes. that still leaves 96k in the bank

Options:
grimes > gilbert this week but am thinking now it might be better to hold off.
then i would have about 15k which if im realy luck i could squeeze gia > riewoldt in 2 weeks time. which brings me to 3 trades.

just b4 finals trade armstrong to mcneill DPP mid/fwd so i can have extra mid cover incase of injury.
then upgrade hargrave/shaw to goddard and have a little cash left over maybe for one grand final trade.

so coming into the final series i would have 3 trades. and then 1 for GF

what to you guys think?