Stirling Engine Question

i hve posted 2 question in the past n ive got very gud help frm all of u....thank you guys a lot.

this time im goin to ask u about stirling engine.

one of my teachers he asked me to do for my Bsc Eng degree project a hybrid stirling engine that uses exhaust gas heat to heat up the fluid in stirling eng and use it as a hybrid with ICE.....now my question is how much temp should the exhaust gas has to be and how much power it can produce form a stilring engine....and which type of design i can use......hope this is not to much that im asking form u all....i just want a lead so that i can start. hope ill get many information....plsz

thank you