Something like this maybe? :)
http://www.mangago.me/read-manga/yojouhan_sweet_home/
A mechanic:
http://www.mangago.me/read-manga/reply/
Seme is construction worker:
http://www.mangago.me/read-manga/ikenai_mousou_fudanshi/
please forget about my 2nd suggestion, i remembered wrong ><
try these instead - though they`re vice versa...
http://www.mangago.me/read-manga/koi_to_karada_wa_senaka_kara/
http://www.mangago.me/read-manga/doutei_doudeshou/
http://www.mangago.me/read-manga/ameiro_banyuu_inryoku/
http://www.mangago.me/read-manga/mata_ashita/
٩(๑❛ᴗ❛๑)۶
http://www.mangago.me/read-manga/moero_ii_otoko/ ch.2
totally random request but.. any manga recs for a yaoi with a blue collar type uke?? like he works in construction (already read Punch Up and kuroneko series), warehouse or whatever. works with his body lol thanks :)