Home Inspection Before or After signing contract

[Darrick Lowe]

I put in an offer on a property and am negotiating the terms.  The home is still under construction  (95% done).  A flip of a home built in the early 1900's.  Needs to hook up electricals, order in appliances, build out closets, finish building  a shower.  Should I wait to have these items done before signing the contract (could take weeks) to give time for home inspector to inspect the property (and risk another buyer over bidding me), or just sign the contract and have the home inspector come when everything is done?  I'm used to having home inspector come in before signing contract so that I can continue to negotiate the terms of the contact.