I guess it's doable, You need to fetch approved and incomplete PO's in two separate groups.Your RTF template will be 2 pages with 2 layouts, first page layout for approved Po's and second for incomplete.

You have to prefix the $ symbol and decimal logic either in your query in data modal or are in the template, I believe these are only the options available.Handling it at data modal level seems to be better option.

Try using DBMS_XMLGEN.CONVERT() function on the column, It will convert data to canonical XML format. https://blogs.oracle.com/manojmadhusoodanan/entry/bi_publisher_formatting_issues

You can create Conc. Program using package to write BLOB to output then map it to data definition which in turn mapped it to template definition.

Share bursting program error log here.