Go check out the waterproof boxes most electrical supply places carry?
I bought 1 to mount my boat lift controls in. I added hinges to mine and it's still waterproof. I have the 2 boatlift controls and a single flip light switch inside the box so all I had to to due was get the lifts at the same level and turn the switches to up/down and then flip the light switch so power gets sent to the controllers at the same time and the lifts stay the same hieght.
cool i didnt think of that the ones ive seen are 500 dollars or so i didnt want to pay that much ive been looking on craiglist but none so far thanks tite lines