Logo Design 8 Designs sent to me in high res please 4' long by 2' high pdf and jpg

I have spent about $1,000 on PPH and you will see from my feedback that I am very easy to work with, and am usually happy with what is produced with few revisions...If you work fast, and want to make a quick $30...send me your portfolio

Information for the business: Medical Laboratory
Industry: Healthcare
Type of logo: Word mark, Letter form, Pictorial mark, Emblem
Brand name/slogan in logo: Private
Number of revisions: unlimited
Ideas for the visual style: will attach 3 images that I hope influence your design
Things to avoid: cartoony This is for a medical research company
Preferred colors: stainless silvery, black,reds pronounced
Where the design will be used: web, print, unlimited
Extra notes: Please use the images attached for the design ideas...

maybe an electron swoosh for the dot on the i or something

Would like to wrap this project in the next few days, so if your respond and have a great portfolio I may award quickly...please be ready to work on right now, so if you have other projects right now, please pass on this, thanks.