You can go with an inexpensive but sporty airframe like this:

[link=http://www.nitroplanes.com/90a185b-gas-trainer-blue.html]60 low wing plane[/link]

But these are sort of oriented to someone who has experience putting together Balsa/Wood ARFs.

If you lack that experience consider something like this...

[link=http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXBMM9&P=ML]Big Stik .46[/link]

The latter comes with very detailed instructions.

You can use standard servos for either, whatever receiver you want... and an inexpensive engine like one of these

[link=http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXFV72&P=7]SuperTigre[/link]

As a bigger to glow engines, you might be better off with an O.S. engine as they are very easy to tune....

[link=http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXFMD5&P=0]O.S. Engine[/link]

But you'll pay more for them and you'll easily break your budget...

Of course you'll need...

A battery Pack for the plane
Charger ( your DX charger will charge the plane's pack just fine... )
Spinner
Prop(s)
Plane power switch ( Hint a $12.00 DSC switch is a good buy ).
Servo Extensions
Fuel Tubing
Chicken Stick or electric starter
Glow plugs
Fuel
Fuel can fittings
Fuel Pump
Receiver
Servos
CA
Epoxy
Hobby Knife
Any sort of cheap restraint... ( I'm using a big old screwdriver, and a thick cloth webbing belt with a clip as a restraint... )

As you can see you are not going to be able to pull this off for $150.00