Gordon,
i have a rc hydro speed control i will sell you, it been completely remanufactured from rc hydros. here are the specs it would suit you perfect ! $75 + shipping.
let me know, thanks , Dave

- V60-612/BEC Features -

# Watercooled & Waterproof
# 6-12 cells
# 1Amp BEC good for 1-2 servos
# 1.5" x 2.25" x 0.5" thick (40 x 65mm x 13mm)
# Programmable for Pistol-grip or Stick transmitters
# Programmable Low-Voltage-Cutoff (LVC) to save your LiPo cells
# Programmable PWM to match your motor's inductance best
# Weighs only 1.2oz (41g) including wires
# 4-FET design for low on-resistance (.0008 ohms!!)
# 300A surge current, 60A continuous with water cooling
# Three-color LED shows OFF, PARTIAL, and FULL POWER settings
# All adjustments are done on your transmitter - no pots to fiddle with!
# Universal JR-style servo connector (compatible with Futaba, Multiplex, Hitec, and Airtronics Z
# 12" servo leads allow flexible positioning
# Fail-safe powers down on radio signal loss (but doesn't glitch)
# Safe-On feature prevents glitching on power-up
# 12AWG wire for minimum resistance
# Recommended for 6-cell Stock and Modified motors (N1, N2) and 12-cell Speed 700
# Manual available Online