I will think about it, and I might give it a shot one of the days after BTC hits $100k, but if I start to try to do it, and it is seeming impossible to achieve, then maybe I will abandon it.
There is no harm in giving it a shot for we may not know what we can achieve without giving it a try you, might even push-up above your plan number who knows if you also try and you notice that your body may not be able to carry it out you can abandon it just as you have said in order not to get sore in your shoulders and arms or getting muscles injuries. For me the day Bitcoin will hit $100k I will try as much as possible to see how many push-up I can be to do but my main target will be 600 push-up a day if I see that my body is still strong enough to still carry out some numbers of push-up then I will continue to see the limit I will get to.