I recently bought the full armrest kit from the U.S online.
Find the links and full part listing below. Just one word of warning...
the Full Black Leather Armrest kit was $288 plus $45 shipping,(about £177)
but with a CUSTOMS charge of £37 to add tops the total to over £200.

Armrest Kit Including Delivery from SEWELL LEXUS USA $288 + $45 Shipping
Click here for their online shop (incase they change the link below)

Click Here for Armrest Kit

I was delt with by Darren Diller ( DDiller@SEWELL.com) who sorted out my order
and it arrived within 5 days. When you try to pay it may only allow you to put in a
USA state address, then you will need to email them to finalize your order

£177 (price may go up as it was on a special offer at the time) Plus £37 Customs Charge
($288 + $45 Shipping + customs £37)

Arm Rest Kit Includes:

58905-53050-C0 MG02H1 DOOR SUB $170.58
(Leather Armrest)

58908-53030 MI05F7 HINGE SU $27.98
(armrest support bracket)

58917-53010-C0 MI11D6 COVER C $42.48
(armrest support cover)

58911-53070-C0 MI11D7 BOX CONSOLE $20.10
(replacement cubbyhole)

58911-53080-C0 MI11D2 PANEL B $11.39
(armrest bolt cover R)

58912-53010-C0 MI11D1 PANEL B $11.39
(armrest bolt cover L)

58958-53010-C0 MI11D5 COVER C $01.68
(magnet cover)

90109-08238 x2 MI11D5(bolt) $02.40
(armrest mounting bolt)

TOTAL PARTS = $288
SHIPPING = $45
TOTAL TO PAY SEWELL LEXUS = $333 +
IMPORT CUSTOMS CHARGES + FED-EX ADMIN = £37

TOTAL LEATHER ARMREST KIT INCLUDING ALL CHARGES = £177 to credit card then £37 Customs charges.

All the parts listed are essential for the kit to fit properly.
Hope this information helps anyone who wants the FULL kit.
For fitting please see Billsy's excellent Installation Guide
HERE for Installation Info

Finally got around to installing it,
along with a full leather interior.

Pics to follow

I forgot to add the pics...... DOH !!

The replacement Cubbyhole underneath the Armrest comes with a hole for a Cigarette Lighter
and I removed this and made my own blank to remove the hole or otherwise things would be dropping
through and rattling around.


The finished result (with Full Leather Interior I replaced at same time)

looking very nice matey i'm suprised you filled the ciggy lighter hole in, thought you would of put 1 of your collection in there??

where did you get those seats from mate? were they standard on ur car??

E-Bay is your friend... with £500 to a scrapped IS300 owner got me a full interior including doorcards.
Std seats were half leather.

Cheers for the guide - is there any info on anything similar for the IS300? Been looking for that part for ages..

I don't understand your question ?
The part is identical for IS200/IS300.