Okey dokes....So you want a heavy bodied but not too large boa????....Hhhhhmmmm??????

Have you thought about a Viper Boa ([I]Candoia aspera aspera)???

http://www.dkimages.com/discover/pre...8/50336883.JPG
http://pds.exblog.jp/pds/1/200712/10...3_16225620.jpg
http://www.sthlm-herp.net/rapport/070225/RIMG0284.jpg

They are a very robust species, with a typical "arrow" shape to their heads & keeled scales..Gorgeous! - Only problem is, they are VERY hard to come by as C.B!

Another is the Soloman Island Boa (Candoia paulsoni paulsoni) - Which is very similar in appearance to the aspera!

http://www.swiftinverts.com/SIGROUND.JPG
http://www.boapython.ch/bilder/pazif...ikboa7_big.jpg
http://www.sthlm-herp.net/rapport/070225/RIMG0289.jpg

Both are stunning....But where-as the aspera will be fine in that size enclosure into adulthood, the paulsoni will eventually need something larger!

Both are pretty much terrestrial (ground dwelling), so height will not really matter too much on the viv.

If you wanted something more arboreal, to make use of the height available....How about an amazon tree boa???

Not a heavy bodied snake...But still lovely!

Here's a good site....http://www.boakingdom.com/

Hope that helps a bit!!??

Steve.