Don't immediately start looking for forks/shocks with lockout - I don't have them on my modern FS and haven't really missed them.
If you're coming from a retro background you might think that you want them, but why have a FS if you're just going to make it feel like a rigid bike? I can understand in the US where they have fire road climbs lasting several hours, but over here it's really not needed...
Honestly, it's just a different style of riding climbing on a FS; try it first!