by RetireeJay » 2016-Feb-Thu-09-Feb
Where are you located? People are on this forum from every continent, and some of them find shipping charges and tariffs to be a significant factor in selecting their preferred merchants.
Also, you suggest contact via e-mail, but you didn't provide an address. Although you are a new poster and therefore can't post links directly, you can post something like sales(at)merchantname(dot)com. And you can post photographs (like a JPG or PNG of your business card...); see sticky posts in newbie sections for instructions.
Just trying to be helpful.

BTW, thanks for posting in the correct sub-forum.
Printrbot Plus operational January 2013
Brass threaded rods (5/16" X 18) & nuts for Z axis
GT2 belts & pulleys
Cable chain to reduce probability of fatigue failure in wires
E3D V5 Hot End, 0.4mm nozzle, also 0.8 and 0.25 in use occasionally
PB fan mount + 40mm fan -- using printed mount adapter, not the E3D supplied fan
Injection molded extruder gears
Optical Z "endstop" (custom designed and built)
Have used many pounds of T-Glase filament. Now also doing some work with Ninjaflex SemiFlex
Print on glass with Scotch Craft Stick or other glue stick
"My next printer is..." Prusa i3 MK3, upgraded to MK3S