Mohair tonneau - definate yes
Immobiliser - definate no
Quilted leather - for me a definate yes.
Pockets - expensive but useful to have either the factor ones or dealer/self fit
Heated seats - maybe, or heated jacket if you plan to use in low teps
Steering wheel - the standard is nice ot use but looks pants. Brooklands, superspoke or moto lita all worth considering
Stage 1 air filter and exhaust - will elt the enginge breath and perform properly.
Enjoy!