Looking for some general Hasselblad advice.

Looking to gear up for a photography project I'm currently researching to start later this year. It will be mainly centred around sea scape photography during storms. I want to do the project in medium format and I really like the image quality of the Hasselblad digitals and I'm probably going to go with a good quality used 39mp Hd3. Basicly I'm looking for advice in two area's ;

A, Since the photography will all be out doors in a variety of conditions would this camera be up to the job?. ( weather sealing,ect )

B. What would be a good lens for this type of photography?. I was initially thinking of something like a 70 - 200mm but I don't think Hasselblad seems to do much in the telephoto line so I'm scratching my head a bit over the right lens choice.

Any advice much appreciated.

There is an H system 300mm lens to consider.

Cheers Wilmarco, looking at the specs on that 300 I think it's going to be my only option. I've already got a old 503c/m with the V series150 Planar lens and apparently there's an adapter so I could use it on a H series camera but it won't have the reach I'm going to need but that combo could work well for general landscapes so that's a bit of a bonus.