Just do it if you know you can actually do it and financially, there's no need to form a collate of how-to on this. Truth be told, if someone can do it then they don't need to ask, there's no definitive how-to on this sort of thing it's all down to your preferences, what instruments you have available to you etc, I'd be worried if a surgeon had to ask where to make an incision on a patient he's meant to be having open heart surgery on

As mentioned above though, as a public forum we would advise you to check with your insurance before you go ahead with the engine conversion. Engine conversions should not be taken as a cheap alternative when faced with a problem the reality of it is that there's alot more hours of labour going into it which will only mean more money on labour if you find yourself stuck at some point - 95% of places would not touch the car if you mention you've started an engine conversion, they will not take over where you left off and wouldn't even want to hear of it. It's something they either do from start to finish or not at all im afraid.