Highguard lists Jump-2 as requiring 5% of the ship tonnage +5 tons. So a 400 ton ship would require a 25 ton jump drive as listed.
The only issue I see is that the ship's computer is listed as Computer/5 bis, which can run the listed software, but should only be Cr. 45,000 rather than the listed MCr. 3. Changing the computer to match the price would give a Computer/15 bis. The computer upgrade is not required for the current configuration, but does allow for additional software to be installed, or even a jump upgrade as high as J-4.
The cost of MCr. 160.187 at the bottom of the stat block is correct (if the computer is upgraded), I do not know where the MCr. 157.347 listed as Purchase Cost came from; a 10% reduction for common spacecraft would come to MCr. 144.1683. It might be an artifact left over from the cost of the Launch listing in the CRB (MCr. 5.607) when converted to the Highguard launch cost of MCr. 2.367.