Thanks all gents for the vote and attention, highly appreciated. I had little time lately for the hobby, too much flying, the company is doing too well, we are having a pilot shortage of 20% against the production!!
Anyhow, I do have some time again.
Paint them on it is, I abandoned the decal option all together.
This is my first try on the test subject, humbrol matt red # 153, not yet faded/stained/weathered...
Low tack masking sheet used, and used the diameter from the Original decals. A little "creep under" the masking as I can see, maybe the pressure a little less and the paint slightly thicker..