RM2k can't get 4k if you want at least ilc with lenses.

You really have to dig deep into the used market. Cause if you target at least m43 bodies that are less than RM1k, mostly only 1080p and max at 60p only. Then add a half decent lens like a 45mm f1.8 prime or 25mm f1.8 prime, that's another around RM1k. Bodies that you can get for less than RM1k in the m43 used market are like:

1. Olympus em5 1
2. Olympus em10 1
3. Olympus EPL5 or earlier

You can for sure find m43 setup less than RM2k but it is from the used market and must really dig deep.