That is a BC (was BCc) - a 'true' red tail boa, looks to be shield, I would guess Guyana but maybe Surinam (both are covered under 'shield basin' BC)
They tend to get larger than their BI (was BCi) cousins and tend to be a little more demanding in husbandry (more prone to regurg if overfed).
In a rush so going to type fast:
For any type of red-tail boa (BC/BI) -
t10 - sorry I don't know. I keep babies and juvis in tubs (shoebox then sweater), I keep adults generally in 4x2x2 caging.
yes you can use Aspen
Yes you can use radiant heat panels for boas
Depends on what type of boa you want and what different breeders have available. There are lots of variable. Sorry I don't know any specific breeders in your area. I suggest checking any out first on the inquiry forum here and on the Board of Inquiry (BOI) on faunaclassifieds
No, you can use rats for the entire lifetime of any boa.
I hope this helps!