Its a bit strange someone buying salvage auction and putting the pixs up of the cars like this. Its very commen for UK cars which have been salvaged to go off to Albania, lithuania, poland etc... Lots of the 4x4's go off to Africa etc.. They then get sold for a lot more money as "straight" cars because the catc/d thing is not carried over to the country where it gets exported to. UK is a bad place to sell second hand cars. Expecially ones written off by the insurer where that record sticks with the car (unless its exported and reimported, which does go on to my knowledge)
You need to know what you are doing when you take on these repairs. Ok the brera doesnt look to bad, but you wanna check like the steering arm and the suspension components and the panel mount points, the sub-frame etc to make sure there is no damage. You need to make sure the SRS system is repaired properly. I think with these Alfas if you replace the airbag modules that fire the ACM will automatically clear and the system should be active again. I think the 159 might have pretensioners in the seat belts that could need clearing manually after replacement (if they fired). But these sorts of things you need to know what you are doing. You cant be guessing.
The 159 repair is not easy. You will need to strip the car down. Unpick the tailgate panels. You will also need to unpick the whole spare tyre panel, and you might find you need to drop the fuel tank and rear axel to do that (im not sure). You can get replacement panels from a breaker but most wont be too pleased with the work required to cut out the sections you need. And most body shops wont like having to unpick salvage cuts of metal, so you can do a cheap repair. If you bought the panels from Alfa you would quickly find out why the car has been written off because you are prolly talking over 1k in panel costs there, you cant buy factor made panels for alfas either. Then with labour. And paint. And you might need a new boot (might be easier getting a new one that trying to straighten that one). Even a cheap body shop run by "builders" that might take this on as cash work, would prolly want at least 1k in labour costs (cash etc). Also the 159 is a non runner you should buy assuming the worse. EG engine is gone. This car has been written off for a reason. When you take on these repairs you need to do a bit more due diligence. EG you need to go and view them. You need to know what the car is worth repaired. And what the car will cost to repair properly. And you need to use professional facilities which specialise in collision repair to do your metal work.
The brera is a non runner cat C, with minor panel damage. Onces repaired over here it would only be worth about 3k as a cat C (I suspect a lot less actually). Aboard I dont know its value. But your going to be looking at 1-2k to repair it (on the cheap). As you payed 2k+ for it. You profit margin if you were selling it here would be bugger all. The brera would be worth a LOT more money here as a breaker. You would generate about 6k from it as a breaker over 3 years.
The 159 for me. As a non runner cat c that needs a lot of unpicking and respot welding of panels which are gonna take time to source "on the cheap from breakers". This also would be a non viable project for me and again the car would be more valuable in the UK as a breaker. The alloys and tyres would insta sell etc... engine and box etc...
My advice. The projects you have taken on are only valid as repair projects if you export them and sell them as straight cars (which is dishonest). Otherwise you are better off breaking them