Would like to keep the structure but need ideas for the colorful fiberglass panels. 

You can also do a two or three piece fiberglass tub with fiberglass wall sections and save the tile work for the rest of the bathroom.

Right now I am looking at Aker CM-60 fiberglass for around $420Aker ACCTS-3360 acrylic for around $800Delta 226032AL00 "Acrylic" $500 (although I've heard that it is just an acrylic layer over other material).Any suggestions of different units or recommendations of things I should be avoiding?

you haven't mentioned prices for plumbing is it on slab foundation or raised floor because the plumbing and finish (tile vs linoleum flooring, fiberglass tub and surround vs cast iron tub w/ tile surround?

It is a heat barrier to reflect back the sun's rays and keep the sun from overheating the asphalt impregnated fiberglass that makes up the body that provides the shingles rain protection.

@Heather W.Thanks Heather..that gives me a ballpark figure..also based on what I read, it seems like a good practice to seal gaps if any in the attic first before doing the fiber glass blowing.

Have you considered fiberglass ? 

Looking at wood or fiberglass replacements.

Put furring strips like 1 X4 against 2" foam and fill between to get your r-14 as is required here.stay away from fiberglass batts below grade,,,basements etc because all it is is a stinky mold and mildew catcher.

It runs into a 6mill visqueen, which is overlapping tartape....which is overlapping the edge of the fiberglass pan.