Page Comparison

[1] Acrylic
Yield Strength: 64.8 - 83.4 MPa (Average value: 75.4 MPa)
Young’s Modulus: 2.76 - 3.30 GPa

Flexural Modulus: 2.96 - 3.30 GPa
Flexural Yield Strength: 98.0 - 125 MPa (Average value: 109 MPa)

[2] PETG
Yield Strength: 28.3 - 58.6 MPa
Young’s Modulus: 1.10 - 20.3 GPa (Average value of 2.65 GPa)

Flexural Modulus: 1.17 - 2.76 GPa
Flexural Yield Strength: 39.2 - 88.9 MPa (Average value of 69.5 MPa)

In short, Plexiglas is a strong enough viable alternative for the side walls of the cover.

Gel-coat
Protective finishing layer for composite surfaces.
Leaves a hard smooth surface good for sticking on adhesive.
Requires sanding and buffing for a smooth surface.
If painting the cover, apply gel-coat first then paint over it.

Source:
[1] http://www.matweb.com/search/datasheet.aspx?bassnum=O1303
[2] http://www.matweb.com/search/datasheet.aspx?matguid=4de1c85bb946406a86c52b688e3810d0

Total surface area: 5.19m^2
Widest part of cover: 0.7112m
Required area of cloth: 23m^2 (2 layers each side plus 10% for headroom)

Would need to order 26 yards
Priced at $11.55 per yard
Approx price: $300 (before applicable taxes and discounts)
Link: https://shop.compositescanada.com/#/product/FJ09-7725-38-LY

Foam:
One sheet of foam cut into 4 thinner sheets covers 5.946m^2

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Would need to order 1 sheet
Priced at $42.6 per sheet
Approx price: $42.60 (before applicable taxes and discounts)
Link: https://shop.compositescanada.com/#/product/U720-100-48

Resin:
Ratio by weight is 2.5:1 resin to fiberglass
Fiberglass is sold by weight per square yard
Total area 20.76m^2 or 24.83 yard squared
Total weight in cloth: 24.83*8.8oz = 218.504oz. Around 6.2kg
Would require 15.5kg (34.17lb) of mixed resin.

Solid insulation foams from local hardware stores are good mold making material.
Can glue multiple sheets together to increase thickness for desired mold shape.

Volume per sheet: 2304 sq. in
Front right and left wall: 182.22 sq. in
Rear right and left wall: 289.66 sq. in
Front lid: 790.32 sq. in
Rear lid: 2521.2 sq. in
Total mold volume: 4255.27 sq. in
Requires 2 sheets: $40 total

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