Thanks for the reply - I was on the Realparts website site last night and had it in the cart along with some new Gotoh tuners and pots ready to pull the trigger... Then I noticed the string spacing is 16.5mm (66mm total) so thought I'd check the original supplied bridge (I presume it's the same one that came with the EX-5) which is 18mm (72mm total) spacing. Cosmetically I think it will look okay with the allparts bridge - I squeezed in the strings on the bridge side to emulate the 66mm width and it gave equal spacing all the way along the neck between edge of the fretboard and the B and G strings. With the stock bridge, the gap on the edge gets narrower going from the nut down to the 24 fret. I t prefer the 18mm spacing though, having fat stubby fingers it suits me better!
The only bridge I've come across with 18mm spacing, apart from the higher end '3D' ones which offer adjustable spacing, is the Gotoh J510B0-5CK (http://luthierssupplies.com.au/produ...roducts_id=447) which is a bit more pricey. The minimum saddle height from top of guitar body is 12mm looking at the specs diagram so may not be much lower than the stock bridge height anyway. Another thought I had to make the stock bridge saddles lower is to take the saddles off and grind a mm or so off the bottom of the saddles on the G/D strings. I haven't had a good look to see how much meat is between the bottom and the adjustment screw hole but it could be another option.
My original thought to solve the uneven string height issue is to reprofile the base of the neck at the joint (the tongue?) to change the neck angle. I might try shimming to start with to see what kind of angles I'll need to achieve it before attacking the neck with a belt sander!