I don't think 130km/h is too fast for a Vios. After all there are reports of 1.3L Vios's running
way past that. Glad to hear that you're getting excellent gas mileage. We here at Metro Manila are already happy to get 12km/L. Hell, even 10km/L is fine.

About the central lock and keyless, I haven't had to buy one so am not familiar with Banawe prices. But looking at Sulit ads,
car alarm and central lock in Metro Manila - Philippines, 3000 seems to be a bit expensive unless its a really good brand. Maybe you can haggle a bit.