1984 4X4 1/2 ton suburban... whats it worth?

[68c10owner]

i have a chance to get a 84 suburban but i don`t know much about the trucks/ burbans from this era. it`s a 4WD,350 motor, unknown trans and transfer case, working front and rear a/c power locks and power windows. it also has just over 200,000 miles. it might have more options but i haven`t looked at it yet. it`s the in-laws and he will sell it to us for $1,000. it runs great , the only problem with it is it needs a new brake booster. what do you guys think it`s worth? thanks for any input.