Chris
I replaced the small pilot light bulbs in the headlamp surround with LEDs and it does illuminate the whole bowl quite well.
I have not wired them up as Daylight Running Lights as then they must extinguish when the headlights are used. I just use "sidelights on" position whenever I think I need it , this gives me 2 LED rear lights , 2 LED wing lights , plus the 2 LED headlamp pilots. Yes it probablly consumes a bit more current than DRLs but I can accept that , and I get the added bonus of folks being alerted to me from front and rear.
I have had no MoT issues , but I do tend to use "Morgan-friendly" MoT stations.
I have a similar set up.Converted all but the headlights to LED. I swapped out my headlights for ones with pilot lights and wired them in with the wing lights. When I switch sidelights on, I have four front LED sidelights on, two rear LED rear lights, four small LED number plate lights, and all the instrument LEDs.
Wouldn't worry about battery drain. While on holiday, I left them on for 15 hours, and car would still start!
