Like several others have said... Get Grandpa's tractor back.. NOW! I'd give a few extra grand to get my uncle's 4020 back... It was the only tractor he ever bought new. (At least I know where it is, so someday...  If I could find my grandfathers' John Deere D, you dang right I'd buy it!! There's a HUGE amount of sentimentality in that old equipment for me... 

 I guess it might be different if it were an old rusting heap of iron sitting around the place and it was just in the way, but you took care of that old B... Gotta keep it just because...

 Go get it back...It's not much money and 5 years or less from now, you'll wish you still had it.  Trust me on that! 

 Just my two cents!!