A 1993 Eurovan is most likely what you'll find.  TI don't thinnk they sold 94s in the US and 95s were the same but there don't seem to be many out there.  I don't know about the jump seats, but this shows how to trim the front seats to fit a vanagon.  They are pretty nice, but not too different from a nice set of passenger seats from a late vanagon. But they are softer and recline all the way.
http://www.thesamba.com/vw/forum/viewtopic.php?t=444294&highlight=
Dave

--- On Tue, 10/30/12, Joe Kearns <joe18d@AOL.COM> wrote:

> From: Joe Kearns <joe18d@AOL.COM>
> Subject: Eurovan seats in a Vanagon?
> To: vanagon@GERRY.VANAGON.COM
> Date: Tuesday, October 30, 2012, 9:47 AM
> I was wondering if the front and jump
> seats from a EV will fit? If so what years? Any
> modifications needed?
>
> Thanks, Joe in NH
>