Not that I'm aware of without modification. Your best bet is to source a stock 603 turbo manifold, most have a Garret T4 mounting base and either use a Garret turbo or something compatible to mount to that base. Alternatively, you may be able to make an adapter to convert the stock turbo mount to something suitable for a Holset. The stock MB Garret turbos are more than adequate for the power you are looking to achieve, may not be worth the hassle for a conversion unless you are looking to really boost up the power beyond say 250hp.

If you are really interested in big power, check out the Fins and their mods to these engines, they are pushing north of 400hp, albeit with extensively modifies injection pumps, turbos and IC's, all custom though.

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Stable Mates:
1987 300TD 310K mi (Hans)
2008 Jeep Grand Cherokee OM642 165k mi (Benzrokee)