I spent about $2K on my swap parts. That included the plate from Destroked and mounts from DCS. I already had everything else(2 complete trucks).
Check the NV5600 with the Ford crossmember. I went with the ZF5 and everything just bolted up. If it doesn't work, you will have to build one, or mod one. Also, if the shifter is not in the same place, you will have to mod the floor. With the ZF5, you just drill a couple of holes in the frame about 2" back from the stock holes and it just works the same way it always did. I switched sides with the braces and you can reuse all the factory holes save 1 on each side. This way you don't have to levitate the cab to drill new ones on the top rail. Also, the plate runs $800. Not sure what the tranny will cost you. If you don't already have the ZF5, that may be a deciding factor.
Putting the engine in is the easy part. It will take a lot more time getting everything else installed and clearanced. Make sure you id and size your power steering fittings and order them. I converted everything to -6AN fittings. So all that was left was buying the correct length hoses to connect the Cummins to the Ford. SummitRacing.com will have everything you need.
Figure out what exhaust mani you want to run. Look at lots of pictures. I'm running the 90* manifold in the up position. I think it's ideal for clearance and exhaust. But I don't think you can do this with the the HX35(?) turbo on the gen2. The waste gate stuff sticks up too far. But you would need to check. I'm still running the H1C and it's perfect.
For the most part it's all a bit of a gamble. Everyone has their own opinion of what "works fine" and "looks fine" means, so you have to take a lot of the experience with a grain of salt and just wing it. It's all possible with effort and work. I chose to buy as many of the swap parts as possible simply to save time. I'm mostly working by myself, so taking the engine in and out 20 times doing fit and fab while 900lbs swings around my hands did not sound appealing. It was $400 and all I had to do was bolt them up and move forward. But if you want, you can fab everything and do the entire swap for about $400.
Good luck! I had a blast doing mine. You won't regret it.