There's really only one question.
Could you live with the regret of saving some coin if your unhappy with your purchase ?
Mrs Smith,
its not just the coin.
Coin - both within budget but the heart one is more expensive enough to make you think.
The Head one will fit in the shed, the Heart one won't. Will need some type of external coverage.
The head one weighs less (Tare and towball) than the heart one. But both can be lived with.
The head one has a more efficient 12v usage setup for hot water/heater.
The head one has an easier to lift top. But both useable.
The heart one has a nicer finish, look, and nicer finished drawers, nicer kitchen layout, internal layout, nicer pantry etc. but both are acceptable.
The more I think and talk about it, and go through my spreadsheet, the more I think the heart is going to win.
Mark