The cable from Retrocables makes perfectly its function, although the EP plug will need some tailoring to enter completely on the EP strange socket. I have one of these and it works good for a LCD TV with Scart connector.
If your LCD TV/Monitor doesn't have a Scart connector....
You need to make a cable yourself....
One good new is that your two monitors directly accept the Enterprise RGB signals(Scart needs some additional resistors). And other one is that our computer delivers both composite sync and split syncs signals apart from the RGB colour signals.
The CRT will give you the more accurate "classic" feelings of scan-lines and colours, but less pixel-perfect than the LCD. 13'' screen seems too little for today standards, but on the contrary it is enough retro..... Amazing professional
specs in that jewel.
The VGA cable on 15KHz can be seen apparently like a good solution, but it depends a lot on the maker to be or not compatible with all the screen modes that an Enterprise could deliver. Of course the Interlaced mode is discarded, and some very high line modes(like for example the presentation screen of the new Short Circuit game), will be shown cut.
Other drawback of multi-sync monitors is that they tend to show false colours for Pal, the palette they use is not so wide as the original. But even so, maybe it suits to you.
Resolutions and colours were the main attractive of the EP computer on its days, but also its stereo capabilities and, if your monitors don't have integrated amplifier and speakers you will need to use a pair of space-wasting external ones.....
To finish, the aspect ratio of the monitor is also important, because the EP was build on the 4:3 past era, and you probably don't want to see forever a flattened image or these ugly black strips at the sides on a 16:9 monitor.
For the Enterprise I better would recommend you to buy a cheap 4:3 second-hand LCD Stereo TV with Scart if your LCD TV lacks the connector or stereo sound. 15'' is enough, but 4:3 LCD TVs were manufactured even on 17'' or 19''.
If you still prefer the CRT monitor or the VGA multi-sync, I can make you a cable.