A small thought:
A friend of mine who had worked for some time as an architectural technician decades ago told me, upon hearing of my taking a similar path, to save all my drafts and sketches. Doing so would help, he said, with forming the concepts and design arguments of the project, with finetuning the details of final draft. Not only may they spark ideas when inspiration runs dry — such drafts and sketches demonstrate the thoughts and development process behind decisions made on the final.
One day you might catch yourself wishing you could take just another look through those drafts. So keep them around a little longer. 😉