sierrax
+1y
Honestly I wouldn't put either of those seats in a B. The B series is totally boxy with an older feel and look. Those seats are too curved and rounded and I my guess is they would look huge in the small cab. They would stick out like a sore thumb and not match any of the sharp lines found in the interior.
UNLESS ....... you have full custom interior with fiberglass/metal dash, console, door pads etc. Then they might look at home in there. If you want a nice stock swap for a comfy bucket try a mid 90's tracker bucket or early to mid 90's full size bucket.
Just my 2 cents.