All old cast iron skillets are easy to season. The trick is making them clean first!
Check youtube for various peoples opine.
Personally I use:
Zep commercial spray cleaner for ovens (cheaper than exz off)
HUGE zip lock bag
Let sit for a few days
Rinse with steel wool.
REPEAT if needed on how dirty pan is. Can take 4 to 5 times.
Scrape down sides with knife. Depending on how dirty pan is.
Repeat, repeat, take your time. It works
To season, brush small amount of Crisco on pan, LIGHT AMOUNT. Pad or with towel
Bake at 325 for and hour 1/2 and then crank up to 450. Once it hits 450 turn oven off and rest till cool to touch.
Repeat if it looks too dry.
TIP, dont load up on the crisco, a thin layer works fine. Just keep baking it on.
I personally like the older pans, griswold or wagner. If you want a griswold get a LARGE LOGO bottom, the small logo bottom ones are thicker and newer casting.
A #8 or #7 griswold is a good size for a #2 smoker