Looking to upgrade my 189 series Ranch Rifle with the side folding stock. I've already swapped out the folding sight with one that has windage and elevation adjustments. Want to switch from the blade front sight to the 3 prong style. Anything else I should consider that won't break the bank to do it? I've already looked into getting some more ergonomic furniture for it (the wire style stock doesn't provide the best cheek weld for consistency). And anyone with information on where I can get factory 20 round magazines without paying an arm and a leg would be a huge help as well. Thanks in advance for all the help.