Do you have any favors you can call in from mechanically-inclined friends or family? Some people enjoy working on cars and will happily spend a weekend afternoon wrenching on a car in exchange for a beer or some other favor. Having someone to help you can cut down the amount of time, scraped knuckles and cussing it takes to do the work.
You also might try sourcing parts from the junkyard; you could likely pick up the parts you need for cheaper than what they'd cost you at the auto parts store. Plus, the act of pulling them from the donor car at the junkyard will familiarize you with the work needed to remove/replace the part, making it easier the second time around when you go to install the part on your car. Not everything can or should be sourced from the junkyard, obviously. One-time-use and consumable bits like filters and gaskets should be bought new, but the durable bits like the manifold, stereo head unit and speakers are candidates for junkyard sourcing.