I also had the similar idea, because the needle clock was damaged, but I like to using uC to do the job.
You can also using uC to do, or using some more complex IC to do, as 2061 to eeprom and some decoder IC.
Using eeprom as a programmable decoder to decode the 2061 from two 7-seg to an one byte binary code, and using decoder as 74HC4028 to decode to 60 LEDS and 12 LEDs.
The two 7-seg send to the address of eeprom, so the eeprom should be have 16 bits, and the datas from eeprom send to the 74HC4028 decoder.
You can also using uC to do, or using some more complex IC to do, as 2061 to eeprom and some decoder IC.
Using eeprom as a programmable decoder to decode the 2061 from two 7-seg to an one byte binary code, and using decoder as 74HC4028 to decode to 60 LEDS and 12 LEDs.
The two 7-seg send to the address of eeprom, so the eeprom should be have 16 bits, and the datas from eeprom send to the 74HC4028 decoder.