PT...its a matter of not wanting to dump to much money into a bike I fully expect to replace within a year or less (I have my eye on a KTM 990 a local guy is expecting to sell before to long). I know from having owned literally dozens of bikes, you dont recover a very high % of costs for things like suspension work...
In that case a good aftermarket shock may make the most sense. They hold their value really well. Buy one, ride on it for a year and pull it off and sell it when you sell the bike. You won't lose much at all.
'07 DL650, '01 DR-Z400S, '99 SV650 (race bike), '80 GS1000S, '85 RZ350, '08 Ducati 848