For a big bloke like you, Woosh Big Bear is a candidate. Big Bafang hub motor, lots of torque. Slight disadvatage is it's a front hub so not so good of road. They do a rear wheel version, not sure what it's called, have a look at their site.
Good luck; we'll continue comments as needed on the other thread. Just one comment on your title here ... as we've said on the other thread, with your requirements you need more than an 'entry' bike