doflinx isn't needed for visual pinball, it was built for future pinball and fx2 and 3.
You just need to configure the DOF config tool and down load the files to your DOF setup. This is all dependent on your setup and whay your using to trigger solenoids etc.
You might try reading the forums over at vpforums and get free help before you pay someone. Also Zeb is also pretty helpful himself. I will tell you up front all you need to know to get it working is in the forums, go to the DOF threads and ask some questions. That's what i did anyway. You will have to get a general understanding of how this stuff works if somebody remotes in and just sets you up, you wont have a clue how to maintain it, and with DOF, DOFLINX, PUP, ETC, it gets even more involved.