ABM reported in the half yearly that it had estimated costs of...

ABM reported in the half yearly that it had estimated costs of $11.650m for the March Qtr. At 1 Jan it had $8.060m on hand in cash and equivalent gold. By March we knew actual receipts for Jan and Feb. If we apportion costs over the first three months on an even basis we get cash flows something like this -

Jan 1  Cash Balance $8.060  1/2 Yearly Report
Jan Sales Revenue   $4.991  (3,220 actual oz at ave $1,550poz) Half month of 24 hour processing
Jan Env Bond Payment   -$2.750
Jan Operating Costs -$3.883

Feb 1  Cash Balance $6,418
Feb Sales Revenue   $3,304  (1,955 actual oz at ave $1,690poz)  Mining interupted by heavy rain
Feb Env Bond Payment   -$1.000
Feb Operating Costs -$3,883  

Mar 1  Cash Balance $4,839
Mar Sales Revenue   $6,640  (4,000 est oz at ave $1,660poz)  Est up on ramped up production after rain in Feb & full mth @24hrs
Mar Operating Costs -$3.883

Apr 1   Cash Balance $7,596  
Apr   Sales Revenue   $4,000  (2,500 est oz at ave $1,600) assuming mining goes until late April to make up for downtime in Feb
Apr   Operating Costs    - $3,000  Depends when mining stops
Apr   Closure Costs    -$4,000  The BIG unknown

May1   Cash Balance   $4,596

The wind-up costs may be more or less, I have made an absolute guess, but it does get precarious. If we get the $3.8m back plus RI of $7.7m nett, then we have just over $16m. Mind you, these costs and projections rely on ABM's figures in their qtlys etc. With their track record how the hell can we be sure of anything?
Anyone want to provide other estimates?
PB