i could build you a mini3 in your price range*
*
i dont do chassis work/machining because i dont have the proper equipment; you could skip it to get this project into your price range
the accucycle rechargeable battery and wallwart add almost $20 to the cost...You could probably get this done for under 100 incl shipping by cutting the "accessories"
i am in the process of selling my mini^3 COMPELTELY barebone. if youre interested in something similar i may be interested in making another one.
WTB: Mini^3
costs to you beyond the actual materials would probably be mostly overhead expenses like the gas for my iron and the higher quality solder i am now using (will turn out better than my first mini^3).
9 days is very short notice. i'd have doubts that i could get the kit in time, the mini3 will probably take me a few hours + testing, then ship it back....that's chancing it