You need a fair number of special tools to build an RV-7. I imported a toolkit from www.planetools.com in Kansas, U.S.A.. This kit included a pneumatic rivet squeezer, a DRDT-2 dimpler frame from Experimental Aero  and a Sioux 3600rpm palm drill.

I have bought some tools in the UK from Harry Hopkins at Gloster Air Parts (www.glosairparts.co.uk). These included a hand rivet squeezer and an in.lb. torque wrench.

I've also bought a few of the more standard tools on ebay. This refurbished pillar drill being one.