not sure of the hourly cost of the shwietzer but i would think the R22 is cheaper for hour building but look at bulk buy of hours this may help but be carefull on doing this
my experience so far is they look at total hours but it helps if you have visited a lot of different airports more so for laterin your career. I know this is a contradiction slightly but mainly total hours then what you have done
for your CPL course you need a good long X Country anyway
Find the school that you wish to do you CPL with get them to assist you in your hour building take an instructor from the school with you to assist and guide you on certain trips, to the tips of the CPL course this will make it far easier when you get to the course
Get you accuracy up to speed get good at cockpit management maps pens ets i know it sounds daft but believe me its not.
If you want any further info PM me and I will give you my telephone number and we can chat more if it helps
And good luck.
Regards
Bravo 99 (AJB)