I would be grateful if anyone could point me in the right direction to get some of the other papers deciphered
I think the easiest way to do this is for you to continue to post snippets of those parts which you want deciphering/explaining, making it clear exactly you need explaining.
For instance in the first image you have already posted there are a number of Army forms noted, such as 104-82b or AB 64 Pt1. I assume you don't specifically want to know what these forms are. In case you do, the 104-82b is a form for notifying a death of a serviceman. AB64 is the confidential questions given to a referee to answer when a man first joins the Army. Pt 1 deals with the War Office's assessment of the response given. Other forms which were sent to the Regimental Pay Office (RP) concern the payment of a gratuity to his next of kin and arrangements for ceasing his pay and any allotment he may have made to a family member he was supporting. The B200 is his statement of service; B103 is the casualty form used for those on active service and B122 is his company conduct sheet. The AF B 198 is the receipt for service papers. I can't identify the two items which start SLOF. They sound like some local abbreviation used within the Record Office itself. My guess is that MOP is the Ministry of Pensions and consequently the form MPB 680 is one of theirs. The Ministry of Pensions was responsible for assessing and paying any pension or benefits due when serving soldier died or was invalided out of the service.
I assume that everything in the second image is clear enough to not need explanation.
