new seats for the front

[toosmiles]

hey guys,
im after some lighter seats for the front but also need to be comfyish
now being at stage 2+ and the car nearly finished it needs to go on a diet lol(and myself)
any recommendations please

 

[toosmiles]

bump for some seats if anyone knows some for sale

 

[toosmiles]

a quick scan on gsm seats,they were happy to help on different budgets per seat
im after something oem type but comfortable also
the only thing concerning me was the fitting of the original seatbelt clasps onto this frame?
Sparco Sprint package:http://www.sportseats4u.co.uk/index.php?_a=viewProd&productId=513
£165.00 - Sparco Sprint (base mounted)
£83.08 - Sparco frame
£32.00 - Sparco slider
£280.08 - Total package

Sabelt GT-090 package:http://www.sportseats4u.co.uk/index.php?_a=viewProd&productId=2377
£182.50- Sabelt Gt-090 (base mounted)
£83.08 - Sparco frame
£32.00 - Sparco slider
£297.58 - Total package

Bimarco Futura package:http://www.sportseats4u.co.uk/bimarco-futura-fia-motorsport-seat/prod_796.html
£204.50 - Bimarco Futura (Side mounted)
£72.00 - OMP frame
£32.00 - Sparco slider
£30.00 - Side mounts
£338.50 - Total package

GP Race Pro Rally package:http://www.sportseats4u.co.uk/gp-race-seat-pro-rally/prod_4624.html
£264.47 - GR Race Pro Rally (Side mounted)
£72.00 - OMP frame
£32.00 - Sparco slider
£30.00 - Side mounts
£398.47 - Total package
what do you guys reckon?