Woah. $200USD for a rim. Thrustmaster is moving into Fanatec territory here. I have a T300 RS and love it paired with my G27 modified pedals using an adapter from Ricmotech. However, if I'm going to put a bunch of money into a shifter, pedals, and different rims, I'm just going to step up to the far superior Fanatec hardware. Kudos for offering the rim in full 1:1 scale however to add to the realism.
You ain't getting there at that price, Junglist. The 383 that this is based on is $250, no electronics. Quick release steering wheel hubs are another $125 (Assuming you don't want to disassemble and reassemble the steering column each time just to swap a wheel). Paddle shifters would likely be cheap, assuming they weren't actually hooked up to a sequential transmission in the car. Plus a pedal set ($100). If we ignore literally all the costs of building the assembly and any related electronic work, you're still at ~2.5X the cost.