Updating a Frame for Rohloff / disk?
I have a 1992 fillet brazed Chas Roberts Roughstuff bike that I am considering updating a bit.
Ideally I would like to add:
Rohloff specific dropoouts for OEM1/2 (thinking Paragon, but Im not too familiar with the best options) OR eccentric bottom bracket (split, bolt clamp style) the EBB is probably too much trouble though.
Disk brake tabs on the fork and chainstay, forward facing dropouts on fork ( again, if its not too much trouble) The fork is stout enough for disks.
a few braze ons here and there (bottle cage mounts and the like.)
Im wondering a few things about the details:
Is it difficult or unwise to amend a fillet brazed frame, generally speaking?
how should I go about finding a suitable framebuilder that would do the work? with the dollar/pound situation, I'm fairly sure I cannot afford for Roberts to do it... I live in the Washington DC area now.
What would this likely run me, assuming two disk mounts, Paragon rohloff sliders and brazed on cable guides for the roholl external gearbox? I know details will change a lot of the pricing, but it would be helpful to have a rough estimate of cost to do it 'right'.
I am basically wondering if it would be better to get the silkroad frameset which is designed for these features. I know and love the Roberts' ride, so I am hesitant to replace the frame, plus the Roberts is SS coupled, which I love. I probably cannot justify keeping both. I know I know: Why mess with something that doesn't *really* need fixing? Basically, I commute, tour and rely on this bike every day, and I want the reliable and generally maintenance free IGH drivetrain... I'm sick of buying chains, cassettes, chainrings, breaking derailleurs, exploding shifters, etc. I will put a full chaincase on this one and call it done.
Just sort of thinking out loud here, but I would love the experts' opinions on the issues and costs associated with these upgrades to a bike I love. Let me know if there are any other details that are helpful to know, and thank you in advance for your thoughts.