Customise Drupal module - TAC Lite

The winning bidder must be very familiar with the interface of TAC Lite, one of Drupal's contributed module for access control based on taxonomy. This module allows per-user access control which can be configured through it's own settings tab in the user's profile. Users of my site need to access different nodes tagged with different terms. Currently, I have to select the taxonomy terms from the multi-select menu. The problem is, my site has a vocabulary with more than 85000 terms means loading the page results in frequent timeouts. What I want to be done is to modify the interface from using the default multi-select menu to an auto-complete, comma-separated text field to select the terms, similar to the text field that can be found in the node editing form.