Is there a chance to map a dynamic currencyDataType value to a Lookup ?

Hi Everyone,

On Agreement form SLA Penalty Currency Data Type Dynamic Value given by user , here i have to copy that value and set it to a Priority (dataType-Lookup) -Priority has name fieldand optionset field (options are 1 to 10) . I know that i cant map them both because to map to lookup there should be record already existed but there will not be any record existed as it is a Dynamic Value.

Friends,Can u please give me any suggestion on how to get out from this issue and do it in best way ?

One more thing i need to do this with Plugin and the wrkflow is used later

Thanks,

Maanasa Gutha