There's no point in discussing the nature of a designer (of life) if we don't have the slightest reason to believe that life was 'designed' in the first place.
This is the usual tactic of the Creationist, to present intentional design as a fact, a preset conclusion & then reason from there. But first you need to demonstrate why life could not have emerged from entirely natural processes!
Would endless time matter in having abiogenesis occur if all of the conditions required were not setup correctly? A small handful would be the conditions the size and distance of a planet from its sun, the planet's axis, and rotation, along with the atmosphere? Some of the other not so minor details, having all the proper chemicals in one place going through the appropriate chemical reactions towards life and not anything else! All of this, of course, only done in a stable environment that could cause life to thrive and survive over time. The only time a chance for life to occur could happen would be if all the variables were appropriately met; if not, more time is meaningless; it would add nothing to the window of opportunities.
The complexity of life is so great the mind that could design it would have to be incredibly powerful. Now we are in time, we have a past, present, and future (hopefully) and all we do is in this little sliver of time we call now. Now is so small it's leading edge, and its trailing edge occupies the same place. If we see things that present to us a chicken or egg issue in life's beginning, wouldn't the designer have to be outside of our time limitations? This designer would also not only have to incredibly intelligent but not be bound to time as we are! Since some requirements have several things being true at once, while we cannot have one without the other, that could only happen with someone outside of our time limitations doing the work?
Just a thought.