I would get ahold of Terry at Firepower minis. You can. Message him through Facebook or Just Google Firepower minis for a phone number or email address. He has done us right along with a bunch of other people in the racing business. Check out what he has going with the Raptor 125. If It's a production class your going to have to stick with the Honda cases. They are more expensive to build than a Pitbike motor,but also you got a little better quality.
Adam McGee Racing 11 running 2 Pitster Pro's and a Xtreme custom flat tracker. Thanks Firepower Minis, Tbolt Usa, Atv Fourplay, Pitster Pro BRM Offroad graphics, Titain Motorworks , Motocross Vests Champions Choice
Moto X Outcast 2012 90cc 3rd place
Steve Nace Indoor Winter Nationals St and TT 2011-2012 and 2012-2013 2nd place.