I am assuming the Seals and Parker boats all used the same supplier for the toerails on all models in which case SL Yachting in Birdham, Chichester acquired all the dies for the various type of toerail from the original manufacturer when it went in administration. I had a new toe rail for my P27 about 5 years back and they produced it, albeit it comes undrilled and there was a two month wait whilst they waited for space at the anodising plant they use, (which I believe is only one near them that can handle a 10M length). If you need the holes in the correct positions and drilled before anodising, I guess you will have to remove the existing toerail and somehow get it over to them to match up. In theory, the spacing should be regular but you may find some odd spacings, possibly for extra fittings, and the spacing will be imperial, not metric. It comes as a straight 10M length but bending it around the hull is fairly straightforward with one person pulling it round as the other fixes the bolts as you go along. Start at the stern and finish at the bow where the least amount of curvature is required.