help please help

[punkoldschool]

sorry for the dramatic title but i think i may need some help with the options i have for heating. i have been looking at getting a jcp and may have found an adult male with a brilliant temperment. i will be getting to handle him before making any decisions aswell as meeting some burms and retics

here come the questions. to house this snake i am building a 4 x 3 x 3 foot viv. i know that the heat source should be at the top and would be looking for the best heating solution. so far i have looked at using a day and a night bulb set up on dimmer's and timers 12 hours on each bulb. i have also thought about back and side heat through heat mats on the top half of the viv.

any ideas would be well apreciated as im giving myself a headache trying to decide the best way to do this