The thread "Timna" in the Pharaoh: Game Help forum describes my experiences of playing this mission.
Saves consists of:
2850-03: basic layout of city
2849-01: city at time of re-commencement
2849-08: with bazaars, gold mines and palace additions
2848-08: all construction done, with exception of festival square and two forts
2847-10: 2000 population
2845-02: just before completion when KR rises in March