Removing Titanium bolt from split rim

[Dazanator]

I have an AC Schnitzer Type 3 racing split rim which needs refurbishing, however 2 of the 19 bolts have broken and the threads are stuck in the barrel.

I need somebody who is up for a challenge to remove the broken bits before any of the big refurbishers will touch it, I am very reluctant to try myself as I don't have a drill press and can only envisage any attempt ending in disaster. A new wheel with the correct size and offset would be very hard to find and a huge cost if ut all went breasts up.

Any suggestions of who would be up for the challenge in the Kent area?

Thanks in advance.

Daz