Though expensive it's a good thing to replace those Volvo hydraulic hoses, I had to do all mine 2 years ago, it seems to be how long they last before expiry (6-7 years). The newer types are made of a harder plastic and look like they will last longer. I assume all the bellows have been done as well.
Nice shiny prop - give it a month it will be black.
Good safety feature that, not allowing the engine to start when well trimmed up, shame it doesn't tell you why it won't let you start the engine! Caught me out for a while once.
Engine Trimming problems, I have a medal for that. Suggested causes (I've had all these): rotted crimps to the trim relays; crimps pushed out of the trim relay block when the trim relay inserted, very hard to spot this problem; failed trim relay (take care if replacing with cheap car ones, the pin are often longer and can push out the crimps also they lack protection from corrosion; 2 wire connector to the trim pump pushed home but does not made contact, hard to spot, apply power direct to the motor connector to test; 3 pin sensor connector does not make contact but otherwise look ok.
I am mighty impressed Adam that you can achieve all this inside a year while holding down a job and a family.