what cage to buy foe my salmon boa

Hello evey one, looking for a little help on choseing a cage for my boa.How is the Boamaster? or Animalplastic ,Boaphile,the cheapest looks like the boamaster wood and melamead.Also is 4 feet going to be big enough when he is older? What about a heat panel?

Thanks for any info.

Any of those cage makers are fine... I keep my adults in a 4'ft. x 2'ft. boaphile cages with belly heat.