Your not realy comparing like for like, the epropulsion is equivalent to a 3hp which in real terms will probably more akin to a 2.5 4stroke petrol outboard which is roughly the same weight, costs significantly less and has almost unlimited range depending on fuel carried.
A used 2 stroke lightweight mariner or mercury/ tohatsu 3.5 will be lighter, run forever & rarely depreciate. Electric outboards & epropulsion in particular havent been around that long to know how they will fare long term they may last many years but if they are like other battery powered tools etc their lifespan may be relatively short in comparison to petrol outboards.
Only advantage of the electric outboard imho is the silent running but at roughly 1k more than an equivalent petrol, I'd stick with the petrol personally.
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