That's all correct. To clarify, the LTD rear case is enlarged to cater for the physically larger stator assembly.Yes and no.
You cannot simply buy a Limited stator and install it. They're physically different.
You can, however, replace the rear case from an LTD, on an '85 engine and install all Limited parts. (Stator/rotor/regulator/rectifier.)
Here's the pinch. If you have an '85 aspy, you must use the '85 Limited rear case. If you have an '86 aspy, you must use the SE-i rear case. They ARE different.