Ask a gunsmith for help. Check out old gun books in the library.
$175-200, depending on condition. Went out of production in 1987.
AMT went out of businees and was bought by another company that kept the name. They only make pistols.
Best left to a gunsmith
50-125 or so
25-125 USD or so
$300, plus or minus $50, depending on condition.
Best to ask a gunsmith for help
How to take apart Coast to Coast Marlin 22 cal long rifle Model 00550
Honestly, depending on condition, 350.00 to 450.00
75-200 USD depending on condition.
$450-$700 Depending on date of Manufacture and Condition.
Best to ask a gunsmith for help if you don't have a manual