I would recommend starting with a basic saddle + climbing method setup before you get into any of the custom or more advanced setups.
Try an off the shelf saddle - either an Aerohunter, Guidos web, or used Trophyline to get a feel for the system.
If you plan on going mobile then i'd get a set of 4 climbing sticks (i saw the muddy aerolite sticks at gander mountain for 40% off... just sayin') and get used to something that's more familiar to traditional hang on tree stand hunting.
The next thing to figure out will be the platform. A lot of guys here use the XOP platform kit - you can DIY it or
@Erniepower makes an excellent one you can purchase. Other options are steppladder, ameristep straps, or some other custom thing.
Once you've given all that a fair shake and you think you're ready to experiment i'd say it's time to move on to different climbing and platform methods and even a custom saddle (ie: sitdrag).
One good thing about the saddle system is that all of the equipment holds it's value really well, so if you find something you don't like or if the system just isn't working for you you can likely recoup most if not all of your cost.
I'm currently running a sitdrag, 4 lone wolf sticks, and the XOP platform. This is going to be my setup for public land hunting this fall. Still a tad heavier than i'd like with the sticks, but a LOT more packable with the sitdrag.
I initially started out with a trophyline saddle - very bulky and uncomfortable IMO. Then moved onto an aerohunter evolution (still have it) which is very comfortable but is still very bulky and not very packable. Now i'm giving a sitdrag a shot.
Like everyone mentioned there is a learning curve and adjustment period so don't expect to be comfortable and ready for all day sits right out of the gate. That will come with time and experimentation. But put the time in to play around and practice with a saddle setup and I think you'll be pleasantly rewarded.