105VR AS A TRAVEL LENS?

i'm just looking for advice on the versatility of the 105VR as a walkaround travel lens. Heading to Asia for a month next year .....but looking for a chrissie present for myself now.
We will be on the move most of the trip so I dont want the weight or risk of taking the bigger lens or too many bits and pieces. Wife and kids definitely wont act as my packhorses!
I currently have the D70s, 1.4 50mm, 18 - 70, 70 - 200VR, 17TC, kenko tubes, SB 800 etc.
OPTION 1
I've always wanted a good macro lens like the 105 which I know is also a great portrait lens. Question is if it can do reasonable coverage of most day to day shooting I might get away with it and the 50mm.
OPTION 2
my other line of thinking - which will add 2 more lenses to the collection is a cheaper walkaround lens like the 24 -120 ( a sharp one!) and a tokina 12 -24. Nice and light kit and pretty versatile from what I read. also costs just a bit more than the 105VR alone
An 18 - 200VR costs a bit too much and basically duplicates what I have already.
I know I have to make the decision myself but any feedback on the 105s versatility would be great.
happy Christmas to you all!
cheers
rookie2

We will be on the move most of the trip so I dont want the weight or risk of taking the bigger lens or too many bits and pieces. Wife and kids definitely wont act as my packhorses!
I currently have the D70s, 1.4 50mm, 18 - 70, 70 - 200VR, 17TC, kenko tubes, SB 800 etc.
OPTION 1
I've always wanted a good macro lens like the 105 which I know is also a great portrait lens. Question is if it can do reasonable coverage of most day to day shooting I might get away with it and the 50mm.
OPTION 2
my other line of thinking - which will add 2 more lenses to the collection is a cheaper walkaround lens like the 24 -120 ( a sharp one!) and a tokina 12 -24. Nice and light kit and pretty versatile from what I read. also costs just a bit more than the 105VR alone
An 18 - 200VR costs a bit too much and basically duplicates what I have already.
I know I have to make the decision myself but any feedback on the 105s versatility would be great.
happy Christmas to you all!
cheers
rookie2