So I want to buy this 240.. sr20 big turbo etc

[elektrIk]

1995 240sx SE
SR20det blacktop notch
5 speed manual
big turbo with a full greddy kit
tien coil overs
some kind of nice rims, forgot
WHOLE s15 front conversion, tal lights, hood etc
Full exhaust
K&N filters all around
300zx calipers
HIDs
Full passive alarm
double dim stereo
Clean paint job


Hes selling it for ONLY 5000$.

Does anyone know whats wrong with it? These are the symptoms:

Says all it needs is a tune, car randomly starts shaking or not getting full power as I drive in first gear.

So from 1000RPM to like 4000RPM its ok then past that its like its losing power or not getting enough then it stalls a bit and picks up till 7000.

When it shifts it grinds a lot in 1-2 gear and 4-5th.

There is also a grinding in the back right side of the vehicle, could that be a stuck caliper or a bad coilover? Its a GRRRPGRRPGRRP not just a GRRRRRRRRRRRRR grind.

There seems to be a baby differential leak also, if it helps.