Re: 78 Johnson 15 Paint and Decals
Decals are available on E-Bay, search for "Johnson decals".
Listed will be a set of generic decals for the 9.9/15 Johnson.
From there you can link to an E-Bay store called Nana's Decals.
There you will see the exact decal you are looking for.
Not original production but very nicely done.
For paint it's still available from OMC but expensive for a rattle can.
Krylon's Ivory Gloss #1504 is supposed to be very close to the original
and a lot cheaper.
The is a website dedicated to these early Johnson outboards, lots
of information.
Maintaining Johnson/Evinrude 9.9 & 15 hp outboards
1974 ? 1992 (Information & normal repairs)
http://www.sschapterpsa.com/ramblings/Johnson 9.9_15.htm
I bought a running 1978 Johnson 15hp 2 weeks ago for $40.00, been looking
for the same items you are.
HTH
Bill