[Milsurplus] R-105/ARR15 need parts

[john p hutchins]

Group -

Recently purchased R-105/ARR-15 in local area.

Mechanical deficiencies:
Looking for sources or Ideas:
Need rear connector what is the part number ? Sources to purchase this 
item?
Need tuning knob what is the part number? Sources to purchase this item?
Dynamotor has broken rubber shock mount - Looking for any ideas on how 
to get replacement rubber mount : fabricate from rubber stock or find 
some NOS/NIB replacement mounts need all 4.

Thanks
Hutch