You certainly have overcome some major hurdles with paint pulling etc. It is coming along quite nicely due to your perseverence and skill. Like Lance, I only spent enough time on the visible portions of the engine, vice detailing it, as I like the buttoned up look of an in service a/c. Your work is noteworthy and will certainly add some interest to the forward section of the a/c. Patience is a virtue learned and practiced every day. I do the same, get up and get away for awhile, and then come back to it.
Best
Mark