I'm pretty sure it was kit built.

46 Engine and retractable landing gear.

looks like a arf p-51 or a dynaflie funscale p-51

It has wingspan of 57 inches...my guess was that this is a great planes kit....but I was just guessing.

I believe the great planes p-51 has a solid sheet balsa fin.the built up fin in the photo is common with nitroplanes and other china arf imports of this size.

Its got a model tech P-51 arf style cowl on it. Wing span is about right. Just guessing.
Edwin

Don't know which Mustang P-51 it is but it is a very nice-looking plane.

Chinese ARF.
And I don't mean that in a bad way, just sayin...

Another question...how much do you think it's worth? The owner has passed away and I'm trying to sell all of his airplanes however without knowing much about this particular model it is very hard for me to price it right.

Check this out [link=http://www.cloudninerc.com/p51.html]P-51 ARF[/link]

Also available by many retailers under different names, can be bought ARF only or with Engine and RTF combos Prices starting at $99 to $399. China is main importer.

I think that you are right...the same color and overall similarity....

Thank you guys for your time......!!!