Hokkaido fruit farms+itinerary

We would also love to visit a peach (1st preference), apple or strawberrry farm during our holiday. Our itinerary is :
July 17: arr Chitose airport late evening, overnight at or near airport but don't know which hotel yet ?
July 18: driving to Norboribetsu and overnight Toyako
July 19: touring Toyako, then driving to Sounkyo onsen, expect to arrive in the evening. How long roughly to drive using the exp'ways as much as possible and that day being a public holiday ? Any hotel/ryokan recommendations in Sounkyo (our budget from yen 12,000 to 20,000 per person per night incl breakfast and dinner) ?
July 20 +21 : unplanned, was thinking of either staying longer in Sounkyo or visiting Asahidake or Teninkyo onsen, any suggestions ?
July 22: Biei
July 23: Furano
July 24: Furano
July 25: leave in morning for Chitose, airport, what is the estimated driving time ?

I assume that you have to use Chitose because of a direct international flight there. In case you fly domestically, I recommend to use Asahikawa Airport on one leg to save just a little bit of time.

You might already be aware of it, but one of the most famous fruit farms is Sobetsu Farm near Toyako:
http://www.town.sobetsu.hokkaido.jp/kanko/english/midokoro/kudamono.ht...

arr Chitose airport late evening, overnight at or near airport but don't know which hotel yet ?

There is one inside the airport:
http://www.japanican.com/hotels/shisetsudetail.aspx?ar=01&sar=010301&s...

then driving to Sounkyo onsen, expect to arrive in the evening. How long roughly to drive using the exp'ways as much as possible and that day being a public holiday ?

It is a long distance! About 4-5 hours almost entirely by expressways, not including breaks. Considering that it is the last day of a long weekend, I am wondering whether there might be some traffic jams around Sapporo (I am not familiar with the traffic situation around Sapporo), which could cause some delays.

To reduce driving times a little bit, you could consider visiting Noboribetsu after Toyako and Furano before Sounkyo.

July 20 +21 : unplanned, was thinking of either staying longer in Sounkyo or visiting Asahidake or Teninkyo onsen, any suggestions ?

Teninkyo is not very nice. I think it depends on your interests. For example, if you like hiking, I strongly recommend to go hiking in the Daisetsuzan mountains with Sounkyo and Asahidake as possible bases.

leave in morning for Chitose, airport, what is the estimated driving time ?

Furano to Chitose Airport is about three hours via Takikawa and expressways. An alternative route via Yubari is somewhat slower, but cheaper.

Thanks Uji for your advice above.
Yes I have to use Chitose on both legs.
I Did not know about Sobetsu Farm, so thanks a lot for that tip. With so many orchards in Sobetsu Farm, is there a central market or place where we can buy all the different produce from all the different orchards as this would save us time ? Also, I saw this in their Japanese site-- （料金は目安です）= yen 850 is this an entrance fee to the orchard ? By the way the Japanese site for Sobetsu Farm: http://www.phoenix-c.or.jp/~kudamono/ shows : "そうべつ農産加工センター オリジナルジュース　北国の雫シリーズ TEL 0142-66-2920 （そうべつ農産加工センター), that tel no. is different from the English site Ｔｅｌ= 0142-66-2333, which is correct if we have to rely on the tel no. for the GPS to guide us there ?

You should use 0142-66-2333