While it's not nearly as good as what you describe above, this is exactly what TDE now has in reaction to the HAL problem. Try compiling tdebase with the -DWITH_TDEHWLIB option and the -DWITH_HAL option both enabled and see if that fixes the build problem. If so, then CMake needs to be updated to handle this in a sane manner instead of having to enable two contradictory options to successfully build without HAL support. ;-)
Building with -DWITH_TDEHWLIB and -DWITH_HAL won't resolve the build failures. The tdebase top level ConfigureChecks.cmake file is hard-coded only to test for HAL. That is why I mentioned I considered changing the cmake test from if( WITH_HAL ) to if( WITH_HAL OR WITH_TDEHWLIB ).
I don't know whether the new TDEHWLIB scheme is dependent upon dbus-tqt.
While TDEHWLIB itself (i.e. the library code in tdelibs) is not, other previously HAL-dependent features in tdebase are still dependent on dbus-tqt. Therefore, tdebase is dependent on dbus-tqt even if the TDEHWLIB is in use.
Tim