I have sufficient information for all sections now.
Interior Layout Details:
- "Interior layout is a dream. She's roomy" S3, C3.
- Two main interior arrangements ("Plan-A" and "Plan-B") S4, C4, C6.
- Plan-A: Very distinctive layout with a convertible salon in the forepeak and two queen-size port and starboard aft cabins S4, C4. Main cabin has a nav station, midship galley, and dining table with "V" shaped settee forward S9, C9.
- Plan-B: Galley is aft by the companionway, and the head compartment separates the salon from the forecastle S1, C1. Has a private stateroom interior with interesting features S1, C1. A variation of Plan-B has an enclosed, private, port aft cabin S4, C4. Also noted to have a huge salon, exceptional galley layout, and an almost office-like navigation station S5, C5.
- Head with shower S2, C2. Solar vent fan mentioned for the head S5, C5.
- General finish quality: "low-tech construction—nothing fancy—no exotic fibers, core materials or unusual tooling" S3, C3. Hull is single skin S3, C3. "Fit and finish of the E37 being better" (compared to other Endeavours, implying decent) S8, C8. "Build quality was quite poor on these boats" S8, C8 vs "My impression of Endeavour's quality took a nose-dive" S10, C10 vs "heavy, rock solid hull" S3, C3. This indicates a mixed perception on build quality, probably depending on specific boat and owner's expectations. I will synthesize this by saying construction was robust and solid, but interior finish might be simpler.
- Storage: "Tons of storage" S5, C5.
Now I can proceed with generating the article.