Hello and welcome
I have a few comments:
1. Do you by any chance have 50Hz TV transmissions? I suspect that the default setup of LMCE is to have 60Hz framerate, and I in some cases had to manually correct this to match it to the TV transmissions. (even after selecting 50Hz in the AV wizard - at least you should verify the framerate- I think it should be written in the xorg.log) Not sure if that still applies in 1004...
2. The titanium skins are the best afaik, and use V2 Normal Horizontal as UI.
3,4,5: I would use the new qOrbiter for android (phone or tablet). It is not complete, but I find the qOrbiter phone skin to work very well for a day to day remote, including media browsing. You might have a different usage pattern, but give it a try and report back what is missing for your use.
Also, I would use qOrbiter instead of remote controls, but that is my preference.
Logitech still sells a modified/rebranded Squeezebox Radio afaik, and this works well with LMCE (I have two).