Look up a member here named Ted and send him a message. He will shorten the mags to hold 5 rounds and it looks a lot better. He will send you pictures of before and after on a gun. Other people here do it themselves, but I'm not that handy. If you'e doing your own barrel shortening and crowning, I'm sure you can do it yourself. There are instructions, I believe, in past threads.
All of the info, I have seen pertains to the .22mag. mags but I would think it would be similar for the .22lr's. However, my disclaimer is, I don't know that much about these kinds of things.
Again, good looking gun,
Macc