I always regret selling anything, just as soon as it is gone....including a recent 7.62 Schmidt-Rubin.....and at one time some years ago I sold all but 3 of a 23 gun collection as I thought I might never be able to shoot again due to a shoulder injury.....can you imagine how I felt after that ???
It has taken a good few years to gather together a similar collection and even now I am contemplating selling one to get another....
I have been lucky and have only ever had to get rid of one gun,
That was my ERA P14, pre-Weedon Repair standard, with volley sights completely intact.
First time I took it out, I was getting a group of some 20 feet.
Took it into an indoor 25m range and it was keyholing. Took it back to the result of it was buggered, so swapped it for an LSA No.1 Mk.3, but still I miss that P14 and haven't found one for sale yet that was in as good condition
If you sell a gun it should only be for lack of storage space and the only reason you should be selling it is to immediately purchase more storage space so the situation never arises again .
You will always regret selling them , even if you only use them occasionally they are still in use and giving you the enjoyment :-)
Can't you sell any of the family first , don't forget all that storage space you could gain as a result as well ;-)