Sure, your AI can take 1’s in their Quality Scores and take a bunch of new cyberware, as long as it does not exceed his/her Physis Rating!!!
The core rules clearly state in the Augmentation section 9.6.1 that non-AIs are limited to 50% of their Physis in ALL augmentations - cyberware, necrotic, mesh, etc. AI characters can go up to 100% of their Physis (but can only use cyberware, of course).
Since your friend would only have a Physis of 1, that’s going to put a kibosh on the munchkin beefing using cyberware. Cyberarms at base 15 Strength and Cyberlegs at the base rated Agility cost a total of 6 points of Impurity Rating, thus requiring a Physis of 6 (a starting AI that does not change Quality Scores will have a Physis of 9, so that’s not a problem). Plus, why bother? I’m sure that with the 50 bonus DP you get just for Quality Scores, you could raise them much higher than if you reduced them to 1 and then added the cyberware (which starts you at 15).
This rule forces the AI to spend points on improving their Quality Scores in order to get more cyberware. Think of improving the Quality Scores as upgrading their “stock” frame and infrastructure. This then allows them to get “after-market” enhancements that are better/improved from the “stock” values.
BTW, purchasing just the normal cyberarms and legs costs 4,800 Trust, which means you would have to also have to spend a minimum of 60 CDP in order to get a Windfall of 4,000 T (30 CDP only gets you 2,000 T, with your starting 2,500 T is still not enough) in order to pay for the cyberware.