Can be printed to fit just the phone, or with cover/case. Just scale a bit up to fit the case. Print the mount 2 times, slide together to fit and us a 6 mm bolt to fasten. The holder can be mounted using 3mm hexagonal bolts
Technical
1 x 6mm bolt + nut about 30mm long
4 x 3mm hex bolt + nut about 10mm long
add bolts or screws for mounting