Yes, they will...
Yes, the 2001 Ford F150 driver's door will fit on the 2001 Ford Expedition.
No, a 1997 Ford F150 doors will not fit on a 2001 Expedition. You will need to get a door that is made specifically for the Expedition.
The rims of a 2001 Expedition cannot fit on a Lexus LX 470.
The 2001-2007 Grand Caravans are all similar. On the seats it will matter on Stow and Go or not, power or not, and with seat airbag or not.
Yes
Generally speaking the seats from a 1999 Windstar will fit up to 2003 Windstars.
1998-2001
Yes it will. All seats are same fitment 1982 - 2003 model years.
YesYes
These will not bolt up, there is a different floor pan design, with help from an engineer they may be able to make alterations to the seat rails to make it fit though. The 2001 Celica seats are very comfortable. I may recommend finding some GT4 ST205 seats if you can't get the 2001 celica seats to bolt in
20 inch
Yes, with money and fabrication you can do most anything.