I will warn you however, presenting grand illusions ain't as simple as having the box. I've seen many fall flat on their face thinking this. Another thing to consider is the setting you will be working, big illusions require room and frequently require lighting control, special back drops and having an audience that's less than 2/3rds in the round.
You mention the Sawing in Half. . . few versions of it can be done in the round because of a certain move that must be done at two different points in the act. There are ways around this, but it seems you're fighting time and time is critical; it's going to take at least a week to learn how to properly work the bit you decide to do and that's if you're working with the simpler effects, something like Shadow Vision demands a good three + weeks to get down pat, as does Interlude and even the Sub Trunk if you want to get picky.
If you have the cash to rent a big piece (rent is usually 25-30% of current retail per day or week depending on what illusion is involved) I'd suggest you invest it into a simpler "Illusionette" such as the Jigg Saw version of the Sawing. . . I have a comedy act that uses this relatively cheap piece that plays big and could easily become a "signature" routine for you that people will pay to see. I'd be glad to share this with you, given your situation, but again time is working against you and to do this act right, you must hustle to get all the props together along with your own scripting.
The other direction you can go is to dust off your Mark Wilson Course and make one of the bigger illusions listed in the back of the book. With exception of the Tip-Over and the Levitation, all of them can be made of cardboard and then painted or covered to look really nice. A similar alternative would be the Darwin Book of Inexpensive Illusions . . . simple enough pieces you can make that give you that big illusion feel on a budget (many of these pieces have been used by Vegas headliners in their shows, so don't think it chincy stuff). Again, time is not on your side, but this is a way to look out for yourself on down the road.
ILLUSIONS TO LOOK FOR (given your time frame)
The Harbin/Spectator Sawing
Lake's Guillotine or Shredder
Assistant's Revenge
Broom or Sword Suspension or Super X styled levitation such as the Blaney, Gwynn, Shiva, etc.
Shooting a Ribbon Thru Lady (the reel version, not the dart)
Zig Zag or one of its spin off versions
MisMade Lady
A SUGGESTION: come up with a routine that plugs the client; their products or services. I've made more cars and motorcycles appear than I can count because of my ties to certain manufacturing groups. Presenting material that reflects the sponsoring client is always something to think about when you are trying to create a memorable feature spot and it doesn't always have to be a big effect so long as it's a piece that can play big and be memorable. . .
Feel free to PM me if you'd like to discuss things a bit more openly.
