$750 is fair for it with the original stock IMO .... whats the Choate stock worth ..... add some for the stock and list it ....if it sells quick you went too low(ops) ....if you get no hits then lower the price ...... how many others are on the EE right now ...do a search back a year and see how many are still listed .......that's what I do ....
if its all in good shape, low round count, new cost(without tax) - 20%
see if you get any bites, its only worth what someone is willing to pay
just my 2 cents,