I don't know if the Centrotec Ratchet sets are still available, but they are a no-brainer if you can get them. Perfect set, and damn glad I picked one up while in Germany.
Festool 497881
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Current Price is around $160 U.S. if you get back 19% VAT at a departure point.
Comes in a Mini-Systainer and easily packed in baggage.
Also consider the Festool lighted Stabila levels if available. There are two models...one long, and one shorty.
And on top of that, if you use Festool Routers, you might consider their 10-piece router bit set for a significant savings over purchasing individually. All these are NOT cheap, but you'll have exclusive ownership in NA! [big grin]
See the picture below for the levels, ratchet set, and the router bits. The Centrotec Installer's Kit is an older version that I don't believe is available anymore, and the U.S. dealers have the current set available.
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If you are REALLY ambitious.. you might consider the following items: BHC Hammer Drill, PDC Quad, and the TSC55 Cordless Plunge saw! [scared] I own these and they are simply AWESOME!
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Good luck, and let us know how it turns out!
Cheers,
Frank