how do you know the each parameter values of SDC at the first time?
You have to learn all constraints used in SDC, from
here.

As you aware of all clocks frequency, so you just need to understand importance of each constraints and find out what optimum value should be correct.

Some constraints like set_input_delay and set_output_delay has standard value or generalized value like, INPUT_DELAY_MARGIN is 60% of your clock period and OUTPUT_DELAY_MARGIN is 40% of your clock period. 

Set that value to parameter and then given to the set_input_delay and set_output_delay constraints.

set PERIOD_CLK               1    # 1 nSec is period of that clock

set INPUT_DELAY_MARGIN    0.60
set OUTPUT_DELAY_MARGIN   0.40 

set CLK_IN_DELAY [expr { $PERIOD_CLK * $INPUT_DELAY_MARGIN }]
set PCLK_OUT_DELAY  [expr { $PERID_PCLK * $OUTPUT_DELAY_MARGIN }]

# input delay is given to din_i pin/port
set_input_delay $CLK_IN_DELAY  -clock $CLK  [get_ports din_i]

# output delay is given to dout_o pin/port
set_output_delay $CLK_OUT_DELAY     -clock $CLK     [get_ports dout_o]


as you are doing STA on RTL stage, It is more of doing for CDC, lint checks only.


  
    set_clock_uncertenty is 0.250 of clock period.
    
    set_clock_transition is two small, 0.1ps. see this
  


EDIT: places where STA performed,