Njord,
very nice conversion. must be great to work closely with Fioroni. I gotta tell you though. I have bought a lot of Fioroni parts for my buggies/truggies and think they are the best hop-up parts available but i have never seen anyone else with them. They are way too expensive here in the states. For example, the hubs on the 8t are $105 US when the hubs of very similar quality can be purchased for $25-50 from every competitor. I would love to see that conversion in the states but it would never sell if it has the Fioroni prices - which it will cuz it has to be imported from Italy.
also, i love that astro-turf track. i recently started and energy drink company call Fighting Cock Energy Drink
http://www.fightingcockenergy.com/ and if it should do well i hope to build a world class, astro-turf rc track here in the states. i have always wanted to build a turf track. they dont exist here and in fact i never even knew they existed. i just always go drive my truggies at the golf courses and i love driving on the short grass cuz its clean, fast, and soft on the truck. turf would be the same. i dont think our US tracks compare to yours. you mentioned that new one to be 360 meters. Our largest US track is the Farm and it is 250 ft x 250 ft ( 85 meters x 85 meters ).
would love to see more pics of more Fioroni conversions.