Edit 20 PDFs to remove commercially sensitive data

We need to remove commercially sensitive pricing data from 60 PDF files, prior to publishing them in a tender. The Freelancer needs to take each PDF, and using PDF editing software (e.g. Acrobat Pro - but others are available) replace every price or discount with "XXX" - but leaving all other data (quantities, text descriptions, dates, etc. etc.) unchanged. An example is attached - the filename ending "s" has been "scrubbed" to remove the data. By way of guidance, this took about 15 minutes (so 60 PDFs would take about 15 hours). Time is of the essence, so we propose to award the project in batches of 3 x 20 PDFs, so it would take each Freelancer about 5 hours. Completion needed inside 24 hours! Thanks for your attention, and look forward to receive your quotes!