I'm not convinced you'll need to re-cap, remember that the dodgy cap crisis happened after these beasts where manufactured.
The main failure point of these is the CRT display section where the display goes mushy. I'm not sure if this is just age or the amount of use they've seen. Mine got increasingly bad to the extent where it was getting very irritating, I had to adjust the display unit pots almost every time I powered it up, although it was fine when I bought it in 2001. Bearing in mind I only switch it on for a total of an hour or so a month on average, I'd say it's age rather than use. Newscope came to the rescue, and while it's not a cheap solution it breathes new life into the unit.