How is this possible? My garden is starting to produce but I don't yet have enough to make into hot sauce. It would be easier to mske a large batch at the end of the season. Texture isn't important, just preserving flavor and heat since it will be sauced and canned. I am growing serrano, scotch bonnet, sweet hot cherries, habañero, and ghost peppers.
The heat in peppers (capsaicin) is quite stable. Any number of preservation options will work, as long as you include the hottest part of the peppers which are the ribs and membranes holding the seeds.
You can choose a method based on your goals and ambition:
For your use case (storage for a few months prior to making hot sauce), freezing may be your best option.