1903 newbie, have a Rock Island 03, sn 1908xx, yr mfgrd 1910 per another site. However, has : - an SA 1-18 barrel MW gauges 1.5, no idea on TE - an 03a3 rear handguard. std Gi rear sight removed. - Lyman sights in place of GI. Front is post inside loop, rear peep mounted on right side of arch in front of the bolt and L's over the top - scant stock with finger groove, in great condition - JS in a box on left side of stock btwn trigger and bolt - the letters F and B descending in the safety cutout - no stock proof marks I can see behind trigger guard - a very light and unreadable stock marking on left side - a straight bolt handle - no other stock proof marks I can see Have not disassembled, want to get a good manual before I try that. What kind of modified 03 monster do I have?