OpenWrt on Xiaomi AX3200 with geosite and geoip rules

Hardware Questions and Recommendations
1

I want to buy Xiaomi Router AX3200 and install OpenWrt and passwall2.

The AX3200 has 256 memory and I want to use Chocolate4U rules. This rules pretty heavy. It's ok with 256 memory, or it's not enough? I have 6 clients at minimum.

2

a 128MB device with unbound will fail at around 320k entries - [SOLVED] Adblock + unbound: How to make it work?

3

I edited post, I want to use rules for passwall2 for v2ray xray.... not for ad blocking.

4

I have a Xiaomi AX3200 Router and I flashed the Openwrt system, I installed passwall, it running perfect, you can buy it.