Just a quick note on the wilwoods, not all of them have no dust seals, although the ones with dust seals will probably only fit under 14 " wheels (I have the midilites under 14 " spyder minilite wheels).
To be honest though I don't think you'll have a problem, I ran wilwood powerlite calipers (no dust seals) on my westfield for 5+ years without problem & so have 20+ friends. Most elan owners are probably like westfield owners and see no problem popping out the pads once a year (quick release anyway) and giving a clean around the pistons.
If you want a run down on most of the range, aswell as the best price for them visit rally design
http://www.rallydesign.co.uk/index.php?cPath=562 they can make up brake lines to any configuration, one off brackets etc so you can fit them to virtually any car. As for Andy Taylor if you're interested, he gives very good advice on the subject.
I think John has the powerlites, they are less than a kilo per caliper, making them the lightest in their class I believe, you can buy Ferodo Ds2500 pads (one of my favourites), Mintex M1144 aswell as the range of Wilwoods own pads (avoid the smart pad, Poly E and Poly A are brilliant but squeal at low speed). When bleeding, the lower bleed nipples stay shut, and the top two should be bleed together.
I do the same as Rohan & run a really good pad in the front and a standard pad in the rear to balance things up -the westfield had the same issue with overbraking at the rear.
HTH,
Mark.