Just about any seat will fit but some folks like the Neon seats... Alot depends on width (being narrow) so that you don't crowd the center where the shifter / emergency brake / console is located. That being said narrow is good.
I put Corvette seats in mine which are a similar wifth as yours.
What Zuksofhazzard is refering to is taking some flat steal my 1/4" thick or so by about 2" wide and an inch or so longer that your seat rails and drilling and mounting these to the bottoms of your seat.
Once you get these in location place the old Samuri tracks on the flat steel and mark the drill holes for the tracks on the flat steel.
Drill out these locations and bolt the Samurai tracks to the flat steel.
Hope that makes sense to you... This is the method I used to mount my seats in place and it worked without any troubles.
Now you can bolt your new seats into your stock Samurai floor pan locations without any problems.
If you need additional help just ask...
Tux...