these are standard items. Dodge sells them for ~25 each OR you can get them from Cometic for a little less. Cometic makes head, intake, and exhaust gaskets for the viper.
http://www.cometic.com/ . They do both copper and MLS for the head gaskets and they will do a copper up to .094 thickness and an MLS up to .120 thickness.
Description - (Click Hyperlink to view Gasket Image) Bore Material Stock Code Pkg Qty Price
Viper 8.0L & 8.3L 96-Up 4.060" MLS / C.O.T. - .051" C5814-051 1 $114.60
Viper 8.0L & 8.3L 96-Up 4.125" MLS / C.O.T. - .051" C5815-051 1 $114.60
Viper 8.0L & 8.3L 96-Up 4.165" MLS / C.O.T. - .051" C5826-051 1 $114.60
Intake Gaskets
Description Material Stock Code Pkg Qty Price
8.0L 92-Up .039" F C5827-039 2 $19.45
Exhaust Gaskets
Description Material Stock Code Pkg Qty Price
Gen II 98-03 MLS / C.O.T. - .020" C5825-020 2 $29.15
Gen III 04-05 MLS / C.O.T. - .030" C5865-030 2 $29.15
JD