I like what you have done here!!
Actually I like it a lot.
Seems like you are using mainly Hasbro parts for your bash. Is that correct?
Also, are the 3A parts (heads, hands, feet, etc..) interchangeable with sideshow heads, hands, feet, body?
Yep, sticking mostly to Hasbro as I think it adds to the "toy" feel...
No the parts are not interchangeable, well heads are but the wrist pegs are smaller & they use ball joints on the ankles like Hot Toys.
these are all on Threea bodies.
Have almost finished Bossk who had to have a lot of work, also got Boba to post.
both on 3a bodies, Bossk was pretty hard to sort out!
wearing a 3a boiler suit which had to be scrubbed as it was so weathered, with hasbro parts added.
his feet are attached using ankle pegs (same style as hot toys) his wrists are attached using 3a female ankle pegs. wrists & ankles had to be bulked out with electrical tape so they were the same thickness as his Bossk parts.
for his neck i had to cut off his hasbro heck which is mounted with glue & electrical tape, his torso is also bulked out a bit with electrical tape... used over a roll on him!