60mm Reservoir mount to 120mm fan with offset

I made this mount to hold my Singularity round reservoir. They are a 60mm diameter radiator, like most of the cylindrical type reservoirs for pc setups.
I have test fitted it after a quick print with petg and it seems to hold the reservoir even without using the inserts. The holes have been made to accept m4 screws, or allow pass though for m3 for radiators, etc. Careful when inserting the nuts, they fit very snug.

For the insert, I intend to make it from tpu or if that doesn't work maybe us