Building 2DOF

Hello everyone! This is my thread going through building my first ever motion simulator. Here are a few things to note. This will be a 2DOF Arduino build for personal use. Many materials have been obtained through friends, dumpster diving and hard work (Working on a very small budget). I would also like to thank everyone so much helping me with this.
Starting off here are the materials I currently have.

-Acura RSX seat
-Lots of u-channel
-bolts, washers and everything needed for u-channel assembly
-A CV joint taken from a car. This will be used as the seat pivot point.
-VR headset used as the screen
I currently don't have the electronics as i have yet to construct the frame.

-My first major concern about this project is the seat weight, the seat is currently 50.3 lb/22.8 kg.
-Does anyone know if the car seat weight will be an issue?
Thanks again everyone!

Update:

-I'm moving along slowly but surely, over the summer I did not have access to some equipment needed in the construction but now I've got everything I need.

-Mounting the seat to the Uni-Strut was a pain because from the factory the mounting rails on the seat were not the same height. I managed to secure it with channel nuts/bolts inside of the frame's rail. (if any problems occur I will just weld)

-There is a lower frame and upper frame (upper frame is connected to the seat) I've completed the lower frame and I'm currently working on connecting the two with my CV joint.




Things to note:

-These photos show just some tack welds. The CV joint will have lots of structural support, fully welded on the top and bottom shafts.

-The orange plate is regular steel just scrapped. I will clean it up and clean up the sizing. (get upper plate sized properly also)

-The holes on the bottom plate are for brackets that connect to the uni-strut so the entire top and bottom can be separated for transportation or modification. (I already made the brackets)

-I think parts of the upper frame uni-strut work is questionable given the abnormality of trying to connect a Acura car seat to uni-strut. I have bolts torqued and inspection marked just in case.

-More support will be added to the uni-strut frames.

That's all for now! Feel free to offer constructive criticism, ideas or any comments. I hope to push through this project in the upcoming months.

I think this 2DOF structure doesn't need to be too complicated, and the dynamic feeling may not be particularly good.

I didn't think of that! I just tested and it does not have any lateral twist.

My design complexity relies on the materials I have (budget). In terms of dynamic feeling I think its hard to determine at the moment because I have not purchased electronics/other pieces of hardware for the actual movement. Let me know if you have anything specific you believe may impact the dynamic feeling. I'm open to any discussion.