A1 : Yes, it is practicable as in you just put what you propose in as a part of the additional conditions of contract at the bottom of page 3. Alternatively, are far more simply, you say in the entries that "The Client is ... " and name the contractor as a legal entity (because they are the Client in the subcontract frameworks). Likewise in part 2, the Supplier is the >name of Subcontractor. I think that is simpler.
A2 : Only if each Call-Off Contract's Scope references the relevant parts of the framework contract which are relevant to delivering each Call-Off Contract. This is likely to be the Framework Information only, but depends upon what it and other docs actually say.
A2 : Only if each Call-Off Contract's Scope references the relevant parts of the framework contract which are relevant to delivering each Call-Off Contract. This is likely to be the Framework Information only, but depends upon what it and other docs actually say.