Kstyle55

Ok here is my situation. I have already replaced that stupid abs brake master unit that toyota cursed the gs with once and now a few years later my abs light is coming on every once in a while and im not about to buy another used unit not knowing how long its gonna last. So i was wondering if anyone knows or is using an alternative like a sc300 or a ls400 master and booster even if its something aftermarket need to figure this out soon before this other one fails on me. Thanks in advance

Dipstikgs

Sub'd for info