I think southern Sweden could be a better place actually.
Pitch accent, uvular r and velar fricative are more natural there.
Of course, the language having saved there is more improbable, maybe I can ignore it.
The name of the lang is Gadamål (yes mål is borrowing). The Swedish name is Gadisk. I found a Saami word "gáddi" meaning coast. Though I've no idea of its origin. So the name was an exonym in the beginning.
It's main superstrate lang is of course Swedish. Saami langs have had affect too in earlier times at least.
Swedish features (some of them may be just accidentally shared)
- pitch accent - two accentuations (two-peak accent and one peak accent)
- definiteness marked by suffixes, sc. suffix articles
- rounded front vowels
- V2 syntax
- complentizer /fi/ works similarly to Swedish /att/ both with clausal complements and infinitives
Shared sound changes
o => u, u => y
ʃ => x, in Jadish it's closer to the velar spirant than the Swedish sound.
Saami features
- lowering diphthongs /ie/, /uo/, and /yø/.
- preaspiration
Unique features
- an essive case for copular complements (that also appears in Saami and Finnic but only in rare contexts), in my conlangs it's very common
- phonemes /ʁ~ʀ/ and /z/
- penultimate stress (that doesn't really differ from Swedish as much it seems.)
- anti-agreement forms of verbs used in relative clauses and argument-focus structures
- adpositions have both definite and indefinite forms
- lack of adjectives (though it's questionable if there still is a class of adjectives in modern language)