Except MQTT No problem for the other feature (200 m2 is small area so the Denna can work with only one battery without issue).
The real question is "a reasonable budget?",for only 200 m2 maybe a new commercial mower can do the stuff but
To know the real cost:
Try to make a list in Ardumower shop of what you want and i tell you what is OK and Not.
You don't need GPS ,IMU,BT module from shop.
In China you need to order RFID receiver with ESP32 and cards, 2 waterproof Sonar sensor, GY88 IMU,Raspberry Pi3B+(If you want MQTT maybe the ZERO W is not OK)
Budgetwise I aim to get below 180 EUR / 200 USD for the parts.
Appreciate if you could have a look at the attached "kitlist" and let me know if what items must be added or should be dropped in your opinion when used with a Denna L600 with a good original battery pack.
Thanks again, I am looking forward to your verdict on kitlist
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I aim to get below 180 EUR / 200 USD for the parts.
For me NO certainly more than 300 Eur..
I fast check your list but you forget the motor driver and the full sender kit (You can't reuse the Denna signal)
The price never include transport on aliexpress ?
The Price for PI screen is not OK.
Only thing is I have to move the axles 2mm to the outside, as the fit Is too close here. Wile design i made cad model with 2mm bend and in reality we used tooling for 1mm only... as the 2mm tooling set was not available.