Chevy S10 ABS break system

I have a 2001 Chevy S10 pickup (4 cyln) with 105,000 miles on it. Recently, both dash break lights (i/p and ABS) have been coming on intermittently (about 1 week, sometimes at start up, other times they don't come on, they never come on while driving). I have had no trouble stopping the vehicle, but the "replace the breaks" rubbing/cyclical noise recently started (1 week). The dealer has said that the ABS motor and module both need to be replaced ($2100) and the truck also needs breaks and new tires (which were replaced 8 months ago). I am planning to get a new truck in about a year/year in a half. Do I have to replace the ABS system for the vehicle to be safe to drive? Is there a way to turn the ABS system off and just use the regular breaks? Thanks for your thoughts.