Cracked DRL / Fog lamp lens - old style

I got an advisory from MOT about the cracked DRL / fog light lens - lights still work. Has anyone replaced one of these? Is it a dealer job or fairly simple? Cost/

Dead easy. You can get replacement lamps off ebay for 20 quid. The chrome surround lamp cover is held in by four plastic clips which are very flexible, just lever them out with something blunt, in my case I used the end of a teaspoon handle. Fog lamp unit is held in by two phillips head screws, remove these, and the unit will come out. Pretty sure there's some youtube videos you can watch if you aren't feeling confident.

Thanks Rangersac, I'll give it a go.