Help! Really confused, which complete kit for 25mph?

[Slam King]

Morning guys. Been reading on this site for a while but need some help with a kit purchase as the choice is ridiculous and if I'm honest a bit baffling.

Bare facts;

My weight - 90Kg
Budget - £600 would be ideal, could stretch if required.
Speed required - 25mph
Distance - 10 miles total daily, 1 medium sized hill
Full assist would rather pedal as little as possible
Bike is a carerra subway with 27.5 wheels
Not bothered about having to charge a battery everyday (ie use the smallest battery as possible)

I would prefer rear hub drive as I think this looks better. Struggling to find a choice of 27.5" kits. Would I be better off purchasing a 26" wheeled bike? Or just fitting a mid drive kit instead to my current steed? I see Yosepower kits come highly regarded but again no 27.5 options currently.
Also where should I purchase the battery from and what spec?

Thank you.

 

[Woosh]

what you need is a small moped.
If you convert your bike to a pedelec, you have to conform to the same limitation: 15.5mph assisted speed.
Anything higher than that has to come from your own pedaling.

 

[Slam King]

Thanks but I can't use a moped on the forest paths I ride, this isn't a bike for using on roads/pathways.

 

[Wicky]

Thanks but I can't use a moped on the forest paths I ride, this isn't a bike for using on roads/pathways.

Exactly - a 25mph electric bike is a moped. Focus not on all out top speed but on a torqey pedelec to get you up the hill.

 

[Nealh]

15.5 mph legally applies to 99+% of all off road use, inc forest use and trails with any public access what so ever. Only wholly private land with no public access can it be legal.
Lower your sights for speed with a hub bike.