I decided to go with the kick-start. I did read that the glass-filled nylon housing sometimes breaks, especially with high-comp or large kits. I will keep the MBK magnum racing engine original, so I should have a relatively low risk of breakage. Plus, Treats had a great deal on a MBK kick-start unit.
In terms of fitment, it didn't clear the pedal arms straight out of the box. Thankfully, the Kingdom of Treatland had a super nice quality MLM stainless steel pedal shaft extender. That made it fit perfect. I couldn't have made it fit without Treats/MLM. Anyway, I'm pretty happy with how it worked out.