I don't know that you are going to find anything cheaper than $40 a 10ml bottle of Cyp. Most of the online TRT clinics will charge you a monthly fee regardless of your dosage. I use Talon Wellness which is $80 per bottle, plus $35 shipping. Initial consult (and every 6 months) is $75. You need to get your own labs or they charge like $140 or so if you go through them. This is the cheapest clinic I found.

I get most of my test through vendors here for blasting, cycles etc. but like to keep a valid script for travel.