Manual?
I'm going to assume you have manual of some sort. If I remember right, SBT sends out an instruction booklet that outlines your procedure.
The above post are good, especially the one about "taking your time". I think SBT gives you ten days to make your swap, get that old motor crated up and sent back. So, don't be in a hurry.
Make sure, you pay very close attention to your MAG's top dead center setting and the procedure for installing your rotary valve. You can be one tooth off, either side of center but that's as flexible as they get.
Good luck and if you run into problems, I'm reading in your thread that you have a lot of good help.............:cheers: