Vintage Synth Repair

hi folks, im wondering if you can give me some advice here....

i have been working on a polymoog 283 on and off for about a year. lots done, and have been doing a 2 steps forward, 1 step back thing for a while. im actually getting close to done. heres my dilemma....

on 3 occasions, i have had to pull the PSU and replace parts. its a +15/-15/+5 PSU. its also coated in thermal compound, hard to reach, and generally a drag to work on(the psu, but the whole thing is starting to wear!:) the harness to the synth is a 15 pin plug-in jobby. there are multiple outputs for each of the  voltages/ground. 

is there any reason i couldnt buy a new PSU, wire all of the grounds/voltages together to their respective pins, and solder to the male harness connector of the old psu? or do i need to take a week off until i have the patience to troubleshoot the old psu, because keeping the multiple +/-/+/ground pins separate is necessary? money is no object here; i would gladly pay 75 bucks for a new psu....

thanks for the help-rj