To export several sets, go to the exporter. If you use the data I'd really appreciate a link back to Brick Insights. It keeps this site going.
Toy is good and would go great with expanding the droid army. You could also get this item with other sets, but this way allows you to to get it cheaper then those complete sets. As of today, this item should be under ten bucks (thats fair). Spending more than double might be overspending on an item like this. I would say it is worth buying.
I like the mini sets with a minifig and this one is no exception. The finished STAP looks good to me and you can never have to many Battle Droids!