Thats a really bad idea man, seriously one of the worst first cycles I have ever seen, there isnt even many experienced users that would do tren and deca together, thats asking for

serious trouble. I would say work on your diet a bit first and gain naturally for a while, you have plenty more to gain like that. that being said you probably have your mind set on a cycle

so if thats the case do test only but do a lot more research becasue even at that level it needs a lot of work. and good luck.

BTW i would estimate your bf over 10% probably closer to 12 but definitely no wherre near 7... IMO