I went with Brunswick because they had the engine and could fit it immediately. I use the beast for work so I had to get it done.
Normally I would have fitted it myself. But I didn't have time.
Also they have a good name.....did have I should say.
A new motor from Nissan is as you say only 7k, but unless you fit new IP and component you void warranty. Which to start is only 20,000km.