とりあえず、追加辞書については、以下のように.skkやinitに書いておけば動いています。
(setq skk-extra-jisyo-file-list
(list "~/.emacs.d/skk-get-jisyo/SKK-JISYO.JIS2"
'("~/.emacs.d/skk-get-jisyo/SKK-JISYO.JIS3_4" . euc-jisx0213)
"~/.emacs.d/skk-get-jisyo/SKK-JISYO.jinmei"
"~/.emacs.d/skk-get-jisyo/SKK-JISYO.law"
"~/.emacs.d/skk-get-jisyo/SKK-JISYO.fullname"
"~/.emacs.d/skk-get-jisyo/SKK-JISYO.geo"
"~/.emacs.d/skk-get-jisyo/SKK-JISYO.propernoun"
"~/.emacs.d/skk-get-jisyo/SKK-JISYO.station"
"~/.emacs.d/skk-get-jisyo/SKK-JISYO.assoc"
"~/.emacs.d/skk-get-jisyo/SKK-JISYO.edict"
"~/.emacs.d/skk-get-jisyo/SKK-JISYO.zipcode"
"~/.emacs.d/skk-get-jisyo/SKK-JISYO.office.zipcode"
)
)