Hi Jon,congrats on your new van.
H100s don`t have remote keyless entry as standard, but because they have central locking, it`s easy to add to the van.
You need a kit that contains at least one solenoid activated arm, to connect to the drivers door lock mechanism, and a key fob to operate that solenoid.
Fitting is usually pretty simple and only requires two power cables, (+ and -).
Have a look on eBay, or at the local car alarm and stereo fitters in your area.