This is an FS25 version of OS Farms R4045. You may find his original work on his Facebook page by clicking the "Play Game" button.
The cab was taken from STX Farms FS22 John Deere 8R Series 2014 US, which is available here, however it is mostly based on the base-game Deere 9RT: STX Farms' FS22 John Deere 8R Series 2014 US The following is a list of the items I altered that I can remember, the most of which are also included in OS Farm's R4045 version that was made public:
on match the actual machine, bespoke decals were applied on the buttons, joystick, and command arm.
Power-on warning panels have been added, which may be dismissed by moving the machine or by selecting "OK" with the IC.
included bespoke display displays that alter based on whether you have a spreader, sprayer, or nothing attached. For accuracy, these displays were extracted from the Deere online simulator.
Custom symbology was added to the corner display, and it varies based on what is installed.
To match the actual machine, the brake pedal was altered.
A custom UHF antenna was built, along with a Skywalker Farms 2-way radio.
The radio was surrounded by "blank" panels after the buttons were taken off.
The backlighting on the radio is now correct.
There are now interactive controls. Get the necessary mod here: Interactive Management
IC is now used to open and shut the door.
In order to prevent the ladder from clipping through the player's field of view as it stretches, the player departure point was moved farther forward, and the ladder's speed was slightly increased.
To resolve any conflicts with other modifications, custom-defined "attacher joints" were added. This still permits screen and symbology swapping based on what is connected to the R4045.
changed the outside cab lights to reflect the actual machine.
To match the actual machine, the opening rear cab glass and corresponding struts were removed.
removed the side wiper, handrail, and rear cab license plate holder.
added the possibility to tint windows.
The mirrors on the boom may now be controlled using a mouse. When backing up to a tree or fence, I dare you to utilize them and modify them.
The booms continue to employ their auto-leveling capabilities, but now you can use mouse controls to raise and lower the whole assembly in response to wind or crop height.
All things now have collisions, so keep an eye out for fences and trees!
All three attachment stands have been widened to enable driving under and away from them even with twin wheels, floaters, or wide tire settings.
Without the amazing efforts of the original modders, I could not have accomplished any of this.
Kyle, Meyer, OS Farms, SMEBY, Zook, and STX Farms. Enjoy and thanks again!
Known problems include: 1) The addition of See and Spray and Pulse Width Modulation. But instead of spraying individually as they ought do, the spray nozzles spray collectively. Additionally, keep in mind that only fictitious functionality is intended at this time since the See and Spray booms do not yet have cameras or gear put on them as they would on the actual machine.

Green Acres Modding is credited.