Nickel is definetely better than chrome from an investment point of view. Nickel is much more scares, although has a much higher cost of production, the profit margin per tonne produced can be much higher than for chrome, and higher capital costs are managable.
For NOT and the ROF, the key would be to get as low capital costs as possible in order to keep investment charges down. The only real way forward from this point of view would be to get the government to pay for most of the road and power infrastructure.
The only 'good' thing about the world economic problems is that costs will drop, they always do in a downturn. In a couple of years, the estimated costs for developing a chrome mine and smelter could be significantly lower than todays estimates. So in my oppinion, NOT should try to conserve capital the best they can while still doing required exploration work. I see no need to spend tons of money on other aspects under the present circumstances.