Possible retrofit of Webasto heater from 740

[BeGuud]

hi all,

I have the opportunity to pick up a cheap and working set of Webasto heater from a 740. This includes all the wirings (no remote though), exhaust and the unit. The unit was controlled from the cars obc (I expect there is some sort of timer that one can set there).

Does anyone know if it is possible to retrofit this into e53 2001 4.4 without to much hassle (both in terms of fitment and also to let the obc talk to the unit) ?

I have read as much as I can on the forum but did not find a retrofit thread, only repair troubleshooting threads.

thanks