I just acquired a Thorens TD 150AB with a TP13 tonearm. It has the original tonearm but it's missing the cue lever. It functions w/o the cue lever, but it looks like it's missing a tooth. I was wondering if I should go ahead and replace the whole tone arm with something else or just find the cue lever tonearm part for the TP13 tonearm. If I replace the tonearm, I really don't want to mess with the tonearm board. Is there a tonearm that fits with the tonearm board w/o modification? I am really only looking to spend $300.00 if I go with a new tonearm. Any suggestion or help will be appreciated.