The winch may not be suitable as their drive slopes down and they need to hitch to the back. The brakes are not very good going backwards. A mover will cope with all of that.
You will need space at the side though to be able to lower the mover onto the wheel each side. You have to use a socket wrench to turn a nut which requires quie a lot of force.
There are movers with cross bar actuation and some now with electric actuation (putting the mover onto the wheel) but these are more expensive again.
Be aware that movers actually move the van surprisingly slowly. You have to unhitch, then lower the movers, switch on the isolator then operate the remote. Once moving they only travel very slowly.
I brought a second hand one for £100 fitted it my self they had damaged the actuators that push the motors onto the wheels got two from amazon via china 1/4 of the price in the uk job done. im the same I have to climb up a kerb to get it down the side of my house.
Well I did have a heart attack trying to get ours over a kerb on site. The Macadam solution (assuming you are laying it on the highway) would not be legal. The solutions are:
Use a motor mover
or use a winch
or leave it on a storage site
or get the kerb lowered (the most expensive option)
or get a tent.
I know my mover wouldn't go up a full size kerb but possibly would with a wooden ramp and a bit of pushing aswell. Just get the kerb dropped. I keep my caravan in storage £20 per month as I prefer to use the drives for my self build camper and wifes car.
my mover manages a kerb easy with the help of small pieces 2 x 4 timber.. i carry several short lengths for leveling.. kerbs and chocks.. a piece the right length under the hitch if you want to check nose weight or adjust the jockey wheel is also useful..
always put the van at an angle and do one wheel at a time when going up kerbs..
Movers enable people who wouldnt otherwise own a caravan, to have one. Myself included. There is no way we could get ours where it 'lives' without a mover. We just wouldnt have considered a caravan if movers didnt exist.
I'd say the OP is one of these people, given the kerb/drive slope/busy road etc. A mover should have been integral to the requirements when sourcing the van, as much as the towball on the car.