I bought a boat trailer and started stripping the boat related bits on 25th August. It is now 15th January here, and the TD wouldn't be half done.
How many hours spent on the actual build? A hundred or so.
Hours spent looking for materials here in Oz? Un-bloody-countable.
I spent half of today looking for some 3mm plywood for the inside skin of the front curved section.
I'm building a generic benroy/rimple and I don't have anything left of suitable size that will curve that tight, so I figured I'd get some super thin and flexible stuff like I did last time.
The local supplier has a shelf marked 3mm luan, but the sheets are actually 4mm hardwood marine ply.
It's $115 per sheet

, and stiffer than a honeymooner's you-know-what. Well, not flexible enough to get around the inside curve, anyway.
I swear it's the same sheets that were $74 two years ago when I started the first build.
I'd heard a rumour that the young fella who bought the other building supply place had branched out into timber (previously mostly steel, bricks, and concrete).
So I went to see him. Only got 17mm formply, so far.
I now have to travel a minimum of 100 miles or find an alternative approach.
So it's taking quite a while.
I don't spend whole days on it, even though I'm retired. Didn't touch it over Christmas, was really sick for 3 weeks.
Had to provide some post-op care to the missus, there's a grand-kid to baby-sit, a contractor son to provide casual technical support to, can't work when it rains, motorcycles to be ridden, rifles to be sighted in, boats to be floated, etc.
It all adds up. Just pick up a tool every time you go past the garage/work area and do something. Eventually it'll come together.