In reply to Removed Usercorbinator:
> It's bridging the gap between landing in La Paz and hiking to 5400m that concerned me - hence the extra days!
Yes, the first few days are important as they set the stage for later, when you can move faster, both logistically as well as physically. Many people rush the first bit and it wrecks the whole trip.
I spent a month or so in Bolivia back in June-July 1999, so I hesitate to provide much info as it's so long ago. But LaPaz was a great place to start acclimating as it's so high but with so much convenience in terms of food, water, rest, health etc. I think we spent the first three days there just relaxing, but doing higher walks is probably a good idea. Just err on the conservative/'lazy' side. Different people acclimatize differently, so beware of any rules or claims in either direction.
I concur with the comments above about Austria, maybe ditch that if necessary, make sure you get some exercise at Chacaltaya over more than a few hours, and focus on keeping healthy.
We spent several days at Condoriri, with summits of Pequeno Alpamayo and Condoriri (Tarija is not a peak, as often advertised, just a blip en route to Pequeno Alpamayo). So this meant we were very well acclimatised by the time we did HP.
HP is popular not just cos it's close to town but because of the claims that it is the easiest 6000m peak in the world, which is ridiculously untrue - it's not even the easiest 6000er in Bolivia (I soloed Parinacota after soloing Sajama and it was just a short basic non-glaciated walk). HP has crevasses and a summit ridge you could easily fall off.
Your optional rest day is a good idea and may be taken up with bad weather on HP, which doesn't give you much rest before Sajama, but if the guide is organised you should be able to be back in LaPaz by lunch after summiting, iirc.
I think Sajama is a beautiful mountain, with some interesting routes on it and a good height. The summit plateau is quite big - a week or so after I climbed it some park rangers did it and kicked a football around up there.