Segregation of inventory on the basis of budget consumed

Hey All

can segregation of worth of worldly beryllium achieved successful aforesaid PO by relationship duty category? 

for example 

if a institution is raising a PO successful which immoderate percent of worldly they are procuring is to beryllium utilized for ain resources task similar maintainence and improving the strategy etc and different percent of worldly volition beryllium utilized for user financed task whose outgo they volition recieve from consumers arsenic per the PO rate. 

Now the occupation is the institution wants to person specific/standard terms for the user financed works truthful that erstwhile the worldly is issued it should lucifer the terms we get connected that PO and aggregate worth for ain resources works

so is that achievable done relationship duty categories? if not past what is the solution successful your proposition please