As far as the banging of the surge actuator and replacement of wheel cylinders, for one thing not all surge actuators bang, I have a Tie Down model 66 on my trailer that I installed way back in 2004 and it has never banged on stop/starts, there is a built in damper that works well, you can barely feel it as you come to a stop and then start up.
Wheel cylinders, what I have done is take a new cylinder off the backing plate, then remove the dust boot. Place a small amount of silicone based brake grease (Permatex orange stuff) around the top of piston, then seal the boot to the cylinder with high temp RTV including the hole where the push rod comes through the boot. That will keep it pretty water proof for a reasonably long time then they are cheap to replace compared to a disc brake caliper.
BTW I have had calipers seize on regular vehicles too, had to replace both front calipers on our '98 Subaru (these and certain Toyotas were known for calipers seizing) and just had to replace one on my son's 4 year old Jeep Wrangler that did a number of off road water crossings. Only had 60,000 mile on it!
Meanwhile my '98 Jeep Grand Cherokee still has all 4 original calipers and none has stuck, same on my 2007 Grand Cherokee.