do they sell the external puck locks for slider doors over wherever you are?
https://www.amazon.com/Master-Lock-Shackle-Padlocks-770-6271KA/dp/B07KV45K8P/
looks like crap as an after-market add on, factory work trucks in the us have the ears on the doors you can put just the lock over.
i feel like this is a super obvious suggestion to a locksmith forum, so, apologies :)
also, old school club for the steering wheel?
https://www.amazon.com/Sala-Ctr-Stainless-Steering-Universal-Security/dp/B07M8HMF3D/
again, feels silly offering rudimentary advice to this forum.
covert GPS tracker could be installed into any of the body cavities behind a service panel in the back door or rear fender where you can grab the 12v power to keep the battery charged. https://www.amazon.com/dp/B0753LC2DQ/