B & K ST 140 repairs

I have a left channel fuse holder blow out, both the fuse holder and the plastic clip connecting the fuse to the board.
Anyone have any idea how much this repair might be. All fuses inside and out are still good.
just the fuse holder is broken? And the amp isn't blowing the fuse? you could do it yourself for about $5 in parts. Alse a shop may likely charge you their min rate for the work - usually $60-80 is my guess. The true cost of the work is $5 for parts, 10 min for labor, so maybe they cut you a break.
Have them check the bias. This happened to me back in the late 1900s when I owned this amp. Bias drift was the cause.