assuming fork spring changes incl fork oil change too then,

the hours do not seem outrageous "by dealer standard" - but i am betting they did hem in about 5 or less at a very leisure rate. I change fork oil incl changing springs in less than 2 hours including a 20mins wait time for oil to drain thoroughly - which i doubt they do. Once your front is off the bike - pads and brake line changes are easy and will probably take less than 2 hours. A competent mechanic who does this day in and day out and are familiar with vstrom has got to be a lot faster than me.

In relation to "piece of mind" - i find it generally it's far from the truth - while our mechanical "know-hows" will not be as good as a good mechanic, most mechanics in this country have a dont care attitude and have limited pride in their job (to put it politely)- you are likely to find extra care that you would give, have not been exercised when servicing your bike.

I understand of your lack of garage dilemma, but know that only you can give the extra care to your bike.

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Finally a bike like Strom i could have as a concubine and my wife doesnt object!