Assumptions:
Making 4000 Straws, ~1000 of which are spares, arranged in 2 chambers per side, individual gas supply to each chamber.
Assuming we make about 10-15 Straws/day including testing.

Year 1:
Day 0: Get Access to Money.
Day 1: Send out orders for straws, wire, connector pins, gas manifolds, ABS endcpas. 
Start setting up clean room.
Start HV distribution board and readout board.
Start design and manufacture on straw cutting jig and gluing arrangement.
Day 1-60 Design + build testing setup for straw tension.
Day 180: Hardware in, jigs machines, readout and HV boards designed.
Start manufacture of straws.
Day 180-210: Manufacture gas mixing and distribution setup.
Day 180-230: Write control software for gas distribution setup.
Day 181-365 Manufacture, test, and glue straws.
Year 2:
Day 0: Get access to money
Day 1: Start design+construction of chamber mounting.
Day 1-180: Manufacture, test, and glue straws.
Day 1 - 120:  Mount and test straws in Chambers 1-2
Day 120 - 150: Design, manufacture, and test shipping containers for the straws for the trip to PSI.
Day 150 - 180: Ship Chamber 1+2 to PSI.
Day 180-240: Mount and test straws in Chambers 3-4
Day 240-270: Ship chambers 3+4 to PSI.
Day 270-365: Commission Full setup at PSI (with beam).

Options to reduce price (price, not Israeli price):
1. Construct fewer straws (although that is less spares - not good).
2. Use 1 gas system per side, or even 1 system total (although again, likely not recommended).
3. Go to 8 planes/chamber and lose efficiency.