Motor Plate/Water Pump Leak Issue

I went ahead and tried to use everyone's suggestion to some degree. I made studs for the long water pump bolts. Plus I transfered the accessory holes in the front of the heads to the motor plate. I also made studs and aluminum spacers for those holes. I figure they will give the plate added support from flexing. The first time I put it together I went with only silicone sealer. Fired it up after letting it cure 24 hours. It leaked. Took it back apart, cleaned everything up and reassembled the parts using 1 gasket on each side of the motor plate. Let it cure overnight and so far no leaks. I hope this cures my problem until the motor is pulled this winter for freshening. I will replace the timing cover then because of some corrosion on the sealing face.
Thanks for all your help. Jeff