Large Guillotine, Ipswich or west Brisbane are

Hi guys. I have a volume of large thick cardboard (arrived incorrect size) which I need to trim down to new size 500x750- two cuts per sheet to achieve this size. The board is much too thick for stationary-type A4/A3 guillotines from Officeworks or similar, and likely requires a machine in the commercial or industrial space. This is a once off requirement so investing in a machine is out of the question. Is anyone aware of a machine like this locally (west Brisbane) where I can pay for a trimming service? Appreciate any insight. Ta