Can I get some advice on a BL motor? I have a E-Maxx - 12 cells, possible 14 in the future. MIP CVD. Steel idler gear is coming and strobe slipper. I have BK 12020 controller, no motor. I am waiting for Wanderer 8xl, but it has been out of stock for a while. What would you recommend for alternatives? I was looking at Lehner Basic 3100. Should I keep waiting? Thanks!