Please help: Can you convert to Direct mount brake calipers on an aluminium fork?

[Christopher Alexander Stevens]

Hi Bikehub family. 
Hoping you can help me with this question. 

Recently purchased an older 2001 De Rosa Vega Merak from a hubber here. 
Wanting to slowly upgrade it. 

List of decisions:

- opt for lighter wheels - carbon WHY or those amazing Campy Shamal HPW 12 Titanium bits that used to come on colnagos from the same era: >> Installed and fitted the Shamals for now - carbon bits much later...
- Carbon seatpost >> To Do
- Convert current mixed older 105/Tiagra groupset set up for more moodern 105/Ultegra groupset >> To Do

- Convert brake calipers from older 105 to Bontrager or WHY Direct mount brake calipers >> To Do. This is where I need your advice. 

Is it even possible? I mean I want to believe that the fork could be modified as it is aluminium, but...

- would that mess up the structural integrity of the fork?

- Thinking that direct mount calipers would put the fork and rear seat stays under new pressures but is that okay?
- Can I drill into the fork (it is thick enough in surface area)?

 

Seeking your help to understand what I should consider here, 

Thanks, Chris

[xcd]

Why don’t you just buy a new fork. There are numerous 2nd hand forks available on the hub. 
eg. Carbon fork for R700. It will give you peace of mind.  It’s not nice going down a hill at 80km/h wondering if drilling your fork has weakened it.