Might I also suggest that running into a turbine twin with minimum hours might not be the best way to approach it?
Unless you have a mate who happens to own a twin Squirrel or maybe an A109 then the best course of action, in my humble opinion, would be to look for something a little smaller, cheaper and less complex. Then get used to flying helos in different weathers, airspace, airfields etc.
Also, will your 70 hour race include an IR rating and a night rating? If not then hours in a twin are about as much use as a chocolate teapot.
if it truly is a CPL(H) you are after then, as has been sensibly suggested earlier in this thread, hour building on a machine where you can get 5 hours for the price of 1 twin hour seems far better. When you have the CPL and our little finacial spat is over then look for an employer who will pay for the conversion.
1,000 hrs pic min on mine for SFH
How much would that be then per hour and what type? (4500 hours rotary, 4000 PIC in twins now getting bored flying pressurised aluminum tubes
)
Enjoy, don't run before you can walk, you'll trip up.