Not a bad couple of options for your budget Sameer, remember to allow a few bucks for an unpressurised basket.
Im sure someone will suggest you get a new Rocky and enjoy plunger until you can buy yourself a decent machine.
If youre not in a huge hurry you can wait and see what pops up for sale on here. I paid $350 for a Quaha Napoletana II (Italian made, 3-way valve, brass boiler, built-in Lux grinder) from another CS member which makes excellent coffee. Although this machine is 5 years old, like most equipment owned by CS members, it was well maintained. Im confident it will last me several more years.
The Napoletana is currently providing coffee for an office of 6 coffee drinkers who no longer buy take away anymore. Not just for the cost but because the quality is now better at work. Unfortunately I usually have to make all these coffees!