There are options out there but all i have found are in Imperial.
If you have a suitable imperial template, all you will have to do is set up one or more metric dimension styles.
They may already be set up but you can tweak so they are more suitable for you. Then go through all of the views in the View Map and change them to use the desired metric dimension style.
Then change your Working Units and Calculation Units to imperial as you want them (fractional or decimal inches etc,).
Objects should be fine, except maybe the user interface display may not have wide enough fields for the proper display of fractional feet and inches, so you may have to scroll in some objects.
One of the forum moderators.
Versions 6.5 to 25
Dell XPS- i7-6700 @ 3.4Ghz, 16GB ram, GeForce GTX 960 (2GB), Windows 10
Dell Precision 3510 - i7 6820HQ @ 2.70GHz, 16GB RAM, AMD FirePro W5130M, Windows 10