Few things to consider - the fuse and the AE systems you listed are not sensored- meaning they only work with sensorless motors.Sensored systems are race legal for stock classes sensorless isnt.If you really dont intend on racing stock classes sensorless is fine.

If you are on a real budget check out the ez-run brushless systems at nitrorcx.com. They have both sensored and sensorless systems paired with motors of varying KV ratings so you can choose what motor will best suit your needs.The EZ run speedos are nice. I have both a 35a and 60a version.both work nice and have many adjustments including timing,punch,brag brake,reverse,,etc. the best part was the price it is like $80.00 for a motor,speedo and programming card.