Yes. Do it. It is ok with low volume pullups. It's a press-oriented program.
You will probably get through 1 cycle of RoP in 12 weeks. Here is the progression for presses I use to recommend
View attachment 21911
If I were to change anything it would be, repeat week 9 two times.
Then do 3x3,5,7, progress in the same way to 5x3,5,7 and repeat that 2 more times.
Have done RoP with 40kg@73-76kg BW. I have not done my 5x3,5,7 with it.
Pressed 48@76kg BW. It works.
I would go by feel.
Snatches is training. Go 60% of what you feel is a "sort of max" and not a maxmax.
Same with swing-percentages.
I have not completed the SSST with 24kg though. Have done 180@10min (most recent try just to see how hard it would be) with 24kg.
Edit: oh rest times mentioned by Mark below. I rested 1min after 1 press, 2 after 2 presses... 5min after 5presses. One ladder took me about 15min.