There's really only one way - bolt it on yourself - do be aware however, that, your Escudo (or Grand Escudo) most likely has a pneumatic freewheel clutch built in to the front differential, so the only advantage of bolting on freewheel hubs is reduced wear on the CV joints - since the driveline has already been disconnected there is no significant gain in fuel efficiency (if that's what you're looking for).
The point I was trying to make earlier was that few of us are familiar with the Escudos & Grand Escudos, and whilst we may be able to tell you what works on a Vitara or Grand Vitara, unless we know what your vehicle is equivalent to (and we still don't, because you've asked about an Escudo, and your avatar suggests you have a Grand Escudo), the answers we can provide may not be applicable.
These forums contain a truly amazing amount of collective knowledge, much of it gained from one individual or another, attempting to do something - like in your case, fitting free-wheeling front hubs to an Escudo - by someone looking at a part and thinking "this looks like it should fit" - the disconnect in this case comes from the fact that you are introducing a new and unknown quantity - an Escudo, which as I have said few of us will have seen.
It's also worth pointing out that there are quite a few JDM Escudos & Grand Escudos that have been exported as used cars and there ARE what I will describe as undocumented differences between the JDM models & the export models, which can make the job of finding out what fits your car truly a matter of trying it yourself.
Good luck.
