Complete the Leftover work in nopcommerce website

Our developer is seriously ill, hence we need help in below tasks; the website is builtin Nopcommerce. Bidder has to Sign NDA and will not hold any rights on the supplied sourcecodes and database, for use by any means. 01) T a x L og S plit. 02) HS N Warn ing for N on A ssigned C ategories. 03) Customer Account UI Updation. 04) Tracking AP I integration. 06) Catagory Page Filter box is too wide. (very small work) 07) Sort by: Rating/Rev iew Criteria not defined. 08) Google sign Up - redirect mismatch. 09) Facebook Signu p Not Working. 10) Courier R ate com parison at check out. 12) Couri er p ending is sues. I will explain in chat about more work.