Lets start from the top and go through the throttle assembly, then you can tell us what is left over and how you manage to get a cable into the bottom of the carb.
Bear with me if I am repeating what you said. I am just trying for clarification.
I think your carb has an extra bowl with a fuel filter in it. I am ignoring this because I don't have one and it looks strait forward enough to assemble from the manual.
With the carb body in your hand, if you look in the big hole in the top, you are looking down on the opening (venturi) where the fuel and air mix on thier way to the engine. In the bottom center of this opening is a small brass diffuser, if you were to drop the slide into the big hole, it would sit on top of this. If the diffuser is removable (some are, some are not), it is installed from the bottom of the carb and held in place by a small brass screw with an axial hole through it. Access to this screw is by removing the main jet (if you see no screwdriver slot after removing the main jet, your diffuser is not removable). This screws into the bottom of the carb, directly below the diffuser. It has a hex end visible on the outside of the carb, a narrowed section with a hole drilled radially through it, then a threaded section with a very small hole drilled axially through the threaded section to the cross hole.
Make sure this assembly is together correctly, it really only goes one way.
In operation, fuel flows from the float bowl to the narrow area of the main jet, into the cross drilling, then up through the small hole which is actually the main jet, to the diffuser.
From the top of the carb, the top cover with the gasket and o-ring, spring and throttle slide should be assembled to the throttle cable. The top of the carb can now be fitted, Making sure that the cut away on the bottom of the throttle slide faces away from the engine. Try the throttle control while looking through the veturi to make sure it closes almost completely and opens all the way.
At this point, you have only choke pieces left over and I hope, not too many holes in the carb to fit them into.
Try to describe these pieces and where you think you are going to put them in the carb.
By the way, I think you have identified the choke correctly in the picture, but as you can see, this has the cable on top.