Bozak concert grand speakers

OP

with the MAC gear, many many will be interested 
at least call Andy at Audio Classics to get some ideas on value before you give this treasure away
ebay is always an option but use caution 

audio classics is in essentially same town as McIntosh of old and the Factory, a long time Mac dealer
can also provide correct shipping boxes

while I am a long term client, I have no financial dog in this fight

unless you have an MC240 or two....
ha
then send me a PM

Beasts
my dad had the B-305 Essentially half the CG
they were not designed for sand
but were of substantial construction including a lot of batting
the crossovers will no doubt require caps
i see them for sale now and then, local pickup only
beaters around a grand
immaculate cabinets in right style, right wormhole in universe might fetch $3K
you might try Audio Classics in NY ( Vestal )
they move some used Bozak gear

lastly you could part them out, certain drivers are worth $$$$

soniclly not my cup of tea, as noted tweeters were off above about 14k
big midrange was beamy
lots of woofers to motivate...

but i I heard them properly setup and driven by two MC275 at Music Unlimited in the late 60’s
amazing in the day

sorry about your Dad