Part of his question WAS "were to get it". Gary Preusse is HIGHLY respected as a source of knowledge and a good place to buy. Alternative sources would include Bill McGraw at Rossi Sales http://www.rossisales.com/ or http://www.rocketcityracing.com/ .

Something you'll discover about certain racing vendors in the US is they can be trusted to recommend the RIGHT parts, even when they don't actually have them. I've had Bill tell me to use a specific part even when he had something similar, but knew the other would work better. I've never spoken to Gary, but I've seen his name recommended by enough people to know he can be trusted to do a person right, even a newbie. The boat racing circles in the US are a great bunch. I buy nearly all of my plane stuff online and NEVER speak to a person. With the boat stuff it's completely different. I nearly always call one of my regular sources (Rossi Sales, Maston's, Rocket City, CMDi for nitro engines, and Toxic Al for gas) to get their advice before I buy. I've never been disappointed, or felt that I was cheated, and I've always received lots of good advice.