Ron,
I think the brake booster and clutch master may be connected with linkages, not the rack. I recall Johhny Woods telling me he had acquired the very last NOS RHD steering rack.
I suspect it would be a lot less hassle to have you existing rack rebuilt, unles of course this is a LHD to RHD conversion. You may have to source something more modern as a replacement, either way the UK guys would be your best source. I would suggest a PM to Johnny Woods.
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