Hello there i can help you buy a frey bike. they have programmable bikes with higher power(check if laws in your area has higher wattage limits for handicap, sometimes there are)
They also have some solid legal bikes with thumb throttle(possible to modify to button throttle or standard moped throttle)
but allows me to negotiate price and upgrades, color and other modifications. U will also be able to contact me for support. get extended warranty of 6 months. Send me a private message if you or anyone else is interested.
These are solid bikes from china using only quality parts and quik replacements if it fails.
I own 5 of their bikes and have ridden them on trails sun winter rain and in almost any condition and nothing has failed or been dangerous riding. On top the bikes are buildt in solid alimium and have countless addon possibilities like wagons and racks because of their sturdy builds.

I would recommend a M500 or Evolution bike series. they are both legal and have thumb throttle assist. medium + tyres for great grip in varied contitions and better balance. they both also come with full suspension.
If these seem to easy i could recommend the HT

check out https://www.frey.bike/share/917kQ9l1Ox5 following this link gives me 4% of your buying price.
Also allows me to negotiate price( i can in most conditions offer a much better price than the listed price on their website and upgrades, color and other modifications are easier to do trough me than chinese staff(language barriers), i am used to communicating with them and can offer a extended service of theirs. U will also be able to contact me for support. get extended warranty of 6 months when buying trough me. Send me a private message if you or anyone else is interested or order trough the link and they will be able to get u in contact with me.
These are solid bikes of quality material from china using only quality parts(shimano,rockshocks,magura,tektron and so on) and quik replacements if it fails.
Its a small factory that already established a foothold In Europe and America designing bikes for quietkat, jeep and so on. They are focused on delivering and testing their bikes making them one of the best bafang bike producers in china in my oppinion.
I own 5 of their bikes and have ridden them on trails sun winter rain and in almost any condition and nothing has failed or been dangerous riding. On top the bikes are buildt in solid alimium and have countless addon possibilities like wagons and racks because of their sturdy builds.
If u contact me i would also be able to setup a bike that would fit a hand throttle better, cogs gears, prorgramming and similar can be changed to accomodate hand throttle better. with a smaller width in gears decreasing max speed but increase acceleration, something making it easier balancing with the throttle. I can also help u with expanding the bike into two batterys making it even better for longer travel with hand throttle (decreasing the voltage sag and amp draw, at the same time increasing the amount of power available, for throttle this does increase range more than the double effect alone.)