In answer to your questions... Yes the white car's taillight is a '61 Olds Super 88 4 door sedan and it is for sale. I know it can be bought for less than $1000, not in too bad of condition.
The engine in my '53 came from a truck with less than 250,000 Km on the clock but a lot of hours still it runs quite well, the trans is a ZF5 that is starting to howl so I'll be tearing it down to rebuild, everything else seems to be in pretty good working order. This week I will be getting some work done on it as I work Monday and have the rest of the week off.