Something to consider if changing to an LED conversion, it may not be as simple as a bulb change, they also have a "blister pack" this allows the bulb to work, so the fitting may not fit in the original bulb housing, there are some "slim" versions out there, another thing to consider is the CAN BUS system, may be triggered by the LED replacement. I would only advice replacing/upgrading to LED if someone has done so before on the exact model car you have and the exact LED package, helps to avoid the problems of fitment etc.
Have you considered using uprated bulbs? something like OSRAM cool blue, they give a xenon look and its a lot easier to fit then an LED conversion.
There are plenty of upgraded bulbs out there, may also be worth a chat to an MOT station, see what they say.