Quoted from ff6735:You can learn to do those things yourself. Plenty of YouTube footage on the items.
I'd also recommend inventing a pinsider over as I'm sure there is one local who would be willing to assist. I wouldn't pay a "reputable" tech a dime, often over priced. Buy the pinsider some beer and food and make a friend.
I pay a good tech quite often and I think this is some bad advise. Chris Hibler is worth every penny and then after he is done I teach him a lesson on Whitewater. If you are not comfortable working on them or you can make much more spending that 4-6 hours on your day job, pay a good tech because it's worth it. On the other hand, if you really enjoy working and tinkering on the games, do it yourself or with some local pinsiders.