Just got a job

Hey guys, I just got a job at a independent shop. The owner guy used to do all sorts of diesel work but then got too old and sick of diesel smell (Not sure how that's possible, I love it). He wants to hire me and once I get some more special tools, bring in more diesel work for me to do. The only diesel tool I have is a compression tester. I'm just looking for some suggestions on good special tools or even general tools to get for diesel service. I used to work at a Ford dealer where I got some advice too so I already got the 6.0 injector harness carrier remover, line disconnect tools, and a 35/36mm socket on my list.