Securing Sliding Wardrobe "pelmet"

[Scarparoo]

Hi there, new to this forum and looking for some advice, not sure if this is the right subsection but it deals with timber so I'm going here!

I currently have a 3.8m stretch of built in wardrobes along a wall. At the top of there is 180mm depth of plasterboard supported by a timber frame which in turn is supported by 4 vertical timber studs.
1 on each end wall and 2 in the middle. This is closing off the wardrobe down to the top of the doors.
This separated up the doors into 3 bays and 6 horrible mirrored sliding doors 600mm wide.
I now have 4 nice new oak framed sliding doors to go in however I need to remove the 2 centre studs to fit these. I need the full span clear of verts.
I've looked in the loft and unfortunately the joists run parallel and this to be suspended wall section is 200mm away from the nearest joist.
I am concerned that there will not be adequate support once I remove the 2 vertical centre studs. It will probably stay in place once the 2 studs are removed due to plastering/coving etc all in place but with new sliding doors operational it will crack and maybe fall down.

Looking for advise on best way to reinforce this bit of "hanging" wall. To me it seems like 2 options;

1. Place a new timber beam from wall to wall that can take the load and fix this on the inside (wardrobe side) of the existing studwork/frame. (Both end walls solid brick).
2. fix new timbers between the the joists in the loft perpendicular to the "hanging" wall and screw this up into the new cross members.

I'm leaning towards option 1 as its less messy and avoids placing further load onto the joists.

I need to figure a connection detail of this new timber to the walls each end and size of joist required...

Would love to hear any advice/ideas.

Kind Regards

Scarparoo

[dewaltdisney]

Some photos would really help, can you post some please?

DWD

[Scarparoo]

Attached

[ayjay]

Option 2: noggins between the joists @ 600mm centres would be the usual method.

[oz0707]

My built in sliding wardrobes have a plasterboard head spanning around 9ft no problems. If nothing to fix to above drop some noggins between the trusses above every 600 or so