I wouldn't worry about using 'high-compression' bandages. The compression that you need to limit movement of subcutaneous lymphatic fluid is not high, easily achieved by something like this:
http://www.chemistaustralia.com.au/prod ... -1-5m.htmla standard crepe bandage is still recommended by most first aid providers, although it takes practice to get the pressure even and firm. Elastic bandages are recommended by resus.org:
http://www.resus.org.au/policy/guidelin ... -aug11.pdfalthough, other agencies don't specify a preference:
http://www.avru.org/files/imported/firs ... et_pib.pdfhttp://www.health.qld.gov.au/poisonsinf ... essure.asp (recommends crepe bandages)
More pressure (above lymphatic pressure) won't be any better, you'll just restrict venous return, which won't do any harm per se - just completely irrelevant to the problem at hand. The main danger of using too much pressure by overzealously applying a highly compressive or elastic bandage is that if you close down venous return completely it may become quite painful (often intolerably so). The downside to this is that you'll need to remove the bandage...releasing the venom you've just slowed down.
I would chuck in a couple of triangular bandages for a splint, as muscular movement is also a very big factor with snake bite.
As with anything, prevention is the best cure so gaiters or long pants should be on your list...