Currently at 105 Maxed sp
-Haven't played in a few years
- Was going to do cube, but being a sorc its very slow solo and i don't have the opportunity to use a higher level to help with cube.
-Plan on getting about 20k more sp by the time i reach 140 than getting more sp from there
-Money isn't an issue, neither is boosters
-Looking for cheapest most efficient method

I'm trying to determine what the best thing i should do for efficient leveling and sp gain, looking for some more input on what to do.

I was thinking I could sp at Darkmind in MC I can do about a round and hour at the moment.
Should i go to 110 and continue to sp on these or is there something better in someone elses opinion other than cube for it takes too long solo.

get some ns lvl 165 + or wizzard 165+ to help u in cube best and fastest way to get sp u can get 3-5k sp per hour depends how fast its and u pay like 100m+ per 1k sp

since you mentioned, that you didn't play for a few years, I think you don't know about the lvl 60 and lvl 100 quest, that will give you 3k sp each when handed in with a pssp.

I think that since your are fully skilled on lvl 105, another 6k sp should suffice till lvl 140, since not all skills are needed till then. meteo on 122 is nice, but windy step you might not need till lvl 140, since there is no point in running at peurekis or morakes...

Thank you for all the input so far been very helpful(:

My friend just informed me that at 115 i could kill Hecete for 22 sp a kill which i may end up doing after i get bored of darkminds