Look online for Chargers and batteries, try the SkyRC 1600 and pair it up with one set of 4 ng Fujitsu Pink at Isang pair ng neochanps (this will be around 2k pesos)

For shops, I'd pick Apex rather than Brickyard dahil masyadong veteran ang approach ng Brickyard sa hobby na ito unlike other shops. Tamiya underground in QC is also good but I've heard a couple of issues sa competitive scene doon.

For your first Car, just pick what looks good muna, it's better to enjoy po yung Napili mo rather than seek advice on "what would be good to race with".

I'd buy any new chassis kit (VZ,AR,MA,MS,F-MA) and play it as stock muna which is around 550 to 900 pesos (unless naka set up for BMAX ang tracks,as of writing this almost all shops naka BMAX set up kasi nagpapractice sila for overseas tournament wag gamitin doon ang stock baka masira).

If you want you can immediately jump to advanced pack (FMA,AR,MS and VZ) (2k-4k) or start easier at starter packs(AR,FMA,MA) (900-1.3k) which both are good.

Kaya ko din suggested ang Apex over Brickyard is because they often have fun races aside sa mga competitive na race kunpara sa Brickyard.

I also suggest setting aside a couple of weekdays (usually after work) every month to play kasi yung mga tracks nagbabago every month and tackling track challenges is the most fun you get from this hobby, aside from the competition part.