Today I commenced the recovery of the donor parts having created my own electrolysis bath (take a look on You Tube), to remove the rust and years of grime having taken a second mortgage for wire brushes, gunk and a variety of degreasing liquids, gels and cloths.
Having spent what seemed like an inordinate amount of time trying to reach a decision on the most appropriate etching primer I elected to use POR15 supplied by Frost Automotive.
Whilst the cost was a little more than expected, it proved to be a worthwhile investment. The spray application was very effective with good coverage and no runs. I will also use a complimentary POR15 product called Top Cote (Satin Black only) to finish the job off having used it before.